Powder for 45-70 - The .45-70 was first introduced as the .45 Government for the army’s new Model 1873 rifles and carbines. Case length was 2.100 inches for use with a 405-grain roundnose lead-alloy bullet of .457-inch diameter. The initial powder charge was 70 grains of black powder.

 
Introduced to the world just 1 year after the invention of .45 Colt, .45-70 Gov’t reigns supreme in the world of straight-walled cartridges to this day. Its name is derived from the bullet diameter (.45 in), the weight of the black powder used when it was created (70 grains), and the fact that it was designed and used by the U.S. ARMY in 1873.. Noaa weather lander wy

Howdy. I'm just starting to load this cartridge and have noticed quite a wide variance of powder loads for this. I have some reloader 7 that i'd like to use and found some bear creek 360g cast flat nose lead boolits and starline brass. I'm using a rossi rio grande lever action with a 20" barrel. I've been trying to find loads for people using the …45/70 using 4895 powder. I follow a number of forums, many times as the posts pertain to cast bullet and recently I saw some posts about 45/70 loads using 4895. Hmmmmmmmmm! I am very satisfied with the results I'm currently getting with a 465gr Wide Flat Nose pushed to 1650fps by 47.5gr of H335. GREAT on deer and elk!Aug 26, 2019 · The .45-70 I get from Defender is loaded with a 350gr bullet, powder unknown, primer unknown, and Starline brass. The ammo ships in reusable 20 round plastic boxes. It is $1 per round. This is my source of Starline brass. 491 posts · Joined 2006. #1 · Aug 18, 2010. I have a new TC Contender 45/70. I shot some of my reloads that are in the "trapdoor" load range through it. A BTB LFN 405 gr over a good dose of 3031. The recoil was more than a little "snappy", more like "brisk" and exhilarating to say the least. In my Marlin 1895 the same load is pretty "snappy".2002. Remarks: max load; 39,400 cup. .45-70 Government (Lever Actions) (Hodgdon Data) reloading data with 56 loads. Using bullets from Sierra HP, Hornady JRN, Speer JFP. Powders include IMR, Hodgdon.657. I have have an good, low pressure, accurate load using 26 grains of IMR SR4759 under a plain base 405 grain bullet for an average velocity of 1,301 fps at around 75 degrees. At around 38 degrees, the velocity drops to an average of 1,248 fps, but it is still very accurate. 09-10-2013, 01:16 PM #17. KirkD.Hodgdon pyrodex or 777 loads for .45/70. I'm planning on getting a Pedersolli Sharps in .45/70. I would like to use a BP substitute, mostly because of the UK laws about storing black powder. To use black powder I would have to get an explosives license and a special box to store the powder in. Some swear by black powder, others …305 posts · Joined 2012. #6 · Apr 8, 2012. I have been shooting 24g's of A2400 , now for about 6 weeks, that was shortly after getting my GBL 45/70! I am casting my own 405g Boolit's, using a Lee 405 standard base mold! Using Wheel weights and dropping in water as soon as cast! Loading as poured and not sizing!Dec 4, 2009 · 996 posts · Joined 2003. #20 · Dec 5, 2009. Unique is my favorite powder for target and plinking loads in the 45-70, I usually use 13 grains with cast bullets 300-400. For hotter loads I use 2400 and for much hotter loads I use 4198 or RL7. Unique is dirty but very accurate and easy on the shoulder. H4198 in the 45-70. Shot my Ruger No 1 in 45-70 today for the first time today. Lyman 385 grain plain base round nose sized .459 with 1.5 grains of dacron, standard primer and 33 grains of H4198. They averaged 1435 fps and showed excellent 100 yard accuracy with a New England peep sight. I was however surprised by the amount …Mar 5, 2020 · Black Powder Cartridge Rifle Silhouette matches started in 1985, and the .45-70 Gov't remains the most popular cartridge in that target game. The number of factory loads still available ... Does baby powder stop sweating? Visit Discovery Health to learn if baby powder stops sweating. Advertisement If you have problems with excessive sweating, you'll probably try a var...Aug 19, 2014 · IMR 3031 powder is a good powder to start with. I guess it really depends on the firearm you're loading for. .45-70 Government. "Trapdoor" and replica rifles plus all modern rifles in good condition: 300 grain Hornady InterLock HP bullet, 52.0 grains of IMR 3031 powder, Federal 210 primer, Winchester case. MV 1,800 fps in 29.5" barrel. In duplicating the cavalry 45/55/405 load for the H&Rs, I've found Tightgroup powder to be the most uniform powder for both ballistic uniformity and accuracy. To duplicate the 45/70/405 infantry load I like slower powders like 4759 and 4198.Jan 30, 2023 · This extruded rod powder is amongst the more popular choices for those who reload their own .45-70 Gov’t. Earlier, we had read from Hornady's Book of Reloading that for our 250-grain MonoFlex bullet and VihtaVouri N-130 combination, we were looking at a minimum powder charge of 45.3 grains and a maximum of 53.4 grains. Mar 5, 2020 · Black Powder Cartridge Rifle Silhouette matches started in 1985, and the .45-70 Gov't remains the most popular cartridge in that target game. The number of factory loads still available ... 19570. The 5744 bottle states that it works on 45-70. I use 5744 in my Savage 10ML-II Muzzleloader and it works fine. ( Warning, do not use smokeless powder in any muzzleloader that is not designed to shoot smokeless!) 5744 is also used by 30-30 reloaders that shoot Lead Cast bullets.Around 44 gr. of IMR-4198 should get him in the ballpark for that velocity. IMR-4198 and H4198 are very good powders for the 45/70 from mild trapdoor loads to heavy hitting teeth rattling loads for lever actions or even stronger Ruger #1's and converted Mausers. 07-31-2011, 09:02 AM #8. paborn. The .45-70 was first introduced as the .45 Government for the army’s new Model 1873 rifles and carbines. Case length was 2.100 inches for use with a 405-grain roundnose lead-alloy bullet of .457-inch diameter. The initial powder charge was 70 grains of black powder. Hodgdon pyrodex or 777 loads for .45/70. I'm planning on getting a Pedersolli Sharps in .45/70. I would like to use a BP substitute, mostly because of the UK laws about storing black powder. To use black powder I would have to get an explosives license and a special box to store the powder in. Some swear by black powder, others …Regarding 45-70 powders and cast bullets, my favorites are as follows: My "everyday" load for the Marlin 1895 Cowboy is the 300 gr. Saeco (# 015-F7L bullet; +/-310 gr. with my alloy), 15.0 gr. of IMR Trail Boss powder, CCI #200 primer in Remington brass. Velocity = 1,213 fps. Your mileage may vary. My 405 gr. lead or cast bullet load is either ...Around 44 gr. of IMR-4198 should get him in the ballpark for that velocity. IMR-4198 and H4198 are very good powders for the 45/70 from mild trapdoor loads to heavy hitting teeth rattling loads for lever actions or even stronger Ruger #1's and converted Mausers. 07-31-2011, 09:02 AM #8. paborn.8 Jun 2021 ... 45-70 gov VS 50-110 win Black powder vs smokeless, Lever Action, #LeverGuns50 #LeverActionRifle.May 28, 2021 · Mar 6, 2017. 3,515. 3,019. Before this primer crunch hit, 5744 was high on the list to do some testing in reduced loads. At some point I'll get around to it. I remember reading somewhere that it's an excellent powder for 45-70 in normal loads. Be interesting to see how it does for you Guy. Jun 7, 2021. #11. Great in .45-70 and .450 Marlin. Small caliber varmint loads; Great for .45-70 and .450 Marlin; Meters consistently; Principal Purpose: Light rifle Secondary Uses: 45-70 gov't Remarks: The right choice for use in Varmint calibers using light-weight bullets. Canister Sizes: View All Reloder ® 7 Recipes. View the SDS. AR-Comp – Your Dedicated AR …Dec 16, 2011 · All you can get in there, with the option of a few grains of some faster rifle powder next to the primer to get the whole thing lit off. H870 by itself in a 45-70 only manages about 900 fps. With 5 grains of 4759 or similar you can get about 1200 fps and a lot less unburnt powder being thrown around. 16 Sept 2018 ... Just the way I do it. I do apologize for my slight lisp, Hopefully a fix will come soon.45-70. Sized to .458. ACME + Coated Bullets are coated in red Hi-Tek coating and nicknamed "Lipstick" rounds. These bullets are cast from 92-6-2 alloy (BNH 16) and are then coated with Hi-Tek coating. The benefits to shooting coated bullets are numerous and include: The coating molecularly bonds to the bullet totally encapsulating it.Jan 30, 2023 · This extruded rod powder is amongst the more popular choices for those who reload their own .45-70 Gov’t. Earlier, we had read from Hornady's Book of Reloading that for our 250-grain MonoFlex bullet and VihtaVouri N-130 combination, we were looking at a minimum powder charge of 45.3 grains and a maximum of 53.4 grains. This extruded rod powder is amongst the more popular choices for those who reload their own .45-70 Gov’t. Earlier, we had read from Hornady's Book of Reloading that for our 250-grain MonoFlex …IMR-4350 for 45/70 Gov't. What is a good load and bullet type for the 45/50 gov't useing IMR-4350.I'll be shooting this load in the H&R 45/70 gov't barrel on a ultra hunter single shot rifle.These loads will be used mostly for whitetail deer hunting. You know handi rifles are like lays potato chip's with the chip's you can't eat just one same ...One nice thing about the Varget and similar powders in the 45-70, you get 100% load density without high pressures. I have only used IMR 3031 and 2400 (mild loads) in the .45-70, but plan on doing more reloading and shooting with the caliber this summer. Andy. Model 60, 1894C, 336C .30-30, 336T .30-30, 1895GS. Save.Dec 1, 2014 · The 45-70 is a black powder case whose total capacity was filled with black powder by necessity to avoid detonation with black powder from an air space. Smokeless powders are generally more able to handle extra air space but more filling powder charges tend to be more uniform in firing. Mar 11, 2014 · About 24-25 grains of 2400 powder approximates the original black powder velocities with a 400 grain bullet. I like 11 grains of Unique behind a 500 gr Lee boolit, my crony says 1100+FPS. Great load in my Sharps and my Pedesorli Rem. Roller 45-70's. 13 grains behind any 45-70 boolit in the 300 to 400 gr. range. I love RL7 for all the same reason's Starrbow mentioned, but H4198 is a real good one as well. H322 has a very good following and is very accurate. I really haven't found a bad powder in my 45-70 yet.. Good thing is everything that works in the 45-70, will work excellent with the 444 Marlin you'll eventually have to have! HA! Good luck.Not sure how it will work in 45/70 but found BD works well in 30/40 and 30/06 using max load of UNIQUE as a starting load, and starting load of 2400 as max. Use 1.5 to 2.0 grains of poly fill to hold the powder against the primer. get it at a Wal Mart or a fabric shop. i have found it helps very much.Similac powder is a popular choice for parents looking to provide their infants with essential nutrients. This formula is carefully designed to mimic the composition of breast milk...2 Aug 2021 ... ... Powder - Hornady - MEC Outdoors - Primal Rights Ultimate Reloader partnerships involve one or more of the following: Product supplied for ...Oct 22, 2020 · 3777 posts · Joined 2012. #4 · Oct 22, 2020. IMR3031 is THE smokeless powder for the 45-70. I use it in my Pedersoli Springfield Trapdoor. I don't believe I use buffers except w/ black powder. Member: Orange Gunsite Family, NRA-Life, the American Legion, and 50-year LEO w/ a 45ACP 1911. All my 1911s are in .45ACP & 10mm. 21 May 2016 ... The .45/70 doesn't have an issue with penetration. Its reputation was built on a 405-500 grain bullet chugging along a 1300FPS. Once you get ...Hello, I have a 45/70 NEF handi rifle and a Lee loader for 45/70. My question is it list a load using 40.3 grs. IMR 4227 for bullet weights of 350 to 450 grs. ,will this rifle handle this load . I have IMR 4227, IMR 3031, and Varget. Would like to use 4227 , a faster burning powder. Any advice would be greatly appreciated. tfranklin7(RTTNews) - United Therapeutics Corp. (UTHR) said that it has prevailed in dry powder inhaler patent litigation with Liquidia Technologies. Unite... (RTTNews) - United Therapeutic...Winchester once loaded many versions of the basic .45-70 Government case with different bullet weights, shapes and black powder charges. It also loaded one variant of the .45-70-405 Winchester load expressly for the Marlin 1881 lever-action rifle. That load featured a differently shaped 405-grain bullet and was head-stamped “.45-70 Mar.”The longevity of the .45-70 Government is the definition of a true classic cartridge. Why The .45-70 Government Soldiers On: Available in many classic rifles, including lever-actions and rolling blocks. ... 25,000 psi or so. This prevents using heavy loads of smokeless powder. In late-Model 86 Winchesters or other smokeless powder … The .45-70 is one of our oldest centerfire rifle cartridges, a black powder number that successfully made the transition to smokeless powder and has prospered into the 21st Century. The traditional .45-70 factory load is a 405 grain bullet (BC .214, SD .272) at a MV of 1330 fps, and a ME of 1590 ft. lbs. This is a very moderate load that kills ... 410 gr. 420 gr. 440 gr. 460 gr. 473 gr. 485 gr. 500 gr. 535 gr. 576 gr. Powder: ALL. Accurate 1680. Accurate 2015. Accurate 2200. Accurate 2230.#1 · Aug 24, 2007. Its time to buy some powder, what would be YOUR choice for use in both 30-30 and 45-70? I would be shooting them in my M94 and Marlin Guide …Oct 18, 2020 · So my question is, out of the powders i have, all shown in the picture. What would be the best powder to use for reloading 45-70? (I only have large rifle primers cci #200/no magnums) I have two types of bullets for it. 525g, Hard Cast, WLN, w/Gas check and 350g, Hard Cast, LFN, w/Gas check They seem to be from "Beartooth bullets" Black Powder Cartridge Rifle Silhouette matches started in 1985, and the .45-70 Gov't remains the most popular cartridge in that target game. The number of factory loads still available ...Aug 11, 2014 · 522 posts · Joined 2013. #9 · Aug 12, 2014. i've loaded and shot a LOT of trail boss .45-70 cast boolit loads for 350, 405, 500 and 535 grains. the load formula is easy - start with 70% of the total tb powder that fits into the case with the bullet yer using - this is important as the bullet seat depth determines the powder volume in a 2.10 ... May 7, 2018 · In the rifle cartridge section of this pamphlet, IMR listed almost all, and I mean almost all the SR and IMR powders for every round they offered data. For the 45-70 it lists load and pressure data for what I thought of as inappropriate powders like 4064, 4895, 4350, 4320 and 4831. The 4831 data showed really attractive TD or BP level pressures ... 19570. The 5744 bottle states that it works on 45-70. I use 5744 in my Savage 10ML-II Muzzleloader and it works fine. ( Warning, do not use smokeless powder in any muzzleloader that is not designed to shoot smokeless!) 5744 is also used by 30-30 reloaders that shoot Lead Cast bullets.Dec 28, 2021 · The Heart of Dixie. I have fired hundreds of 405 gr cast bullets over 27/5744 in 45-70 rifles of various types for years with outstanding results. This is a BP (or a little hotter) level load. Larger 5744 doses can be used for strong actions, but I usually go with other powders for stiff loads. Alliant Powder’s Reloder 7 smokeless small rifle powder was designed primarily for varmint loads in small calibers. Reloder 7 also has metered consistency and has shown to match or surpass the overall demands of one of the most sought-after bench rest shooters. Alliant Reloder 7 Powder For Sale is ideal for light rifles in the.45-.70 and.450 Marlin calibers.My rifle is a Henry 45-70 lever action and I am going to be using it, primarily for bears and whitetail. I am going to try the Barnes tsx this year but normally prefer the heavier bullets in a 45-70. The bullets I have stocked up on are: - 300 grain Barnes tsx. - 350 grain Hornady and 350 grain Trophy Bonded Bearclaws. - 405 grain hard cast.Bradley C- Just for target shooting I have found that a .445 cal roundball with a .015 pre lubed patch sitting on top of 35gr of FFF powder works best up to 50-75 yards. If I’m shooting 100 yards I double the charge to 70gr of FFF powder. Mike K- 60gr fff, .440 ball, .10 patch, fff priming. There are lots of different answers from a variety ...A medium burn speed propellant with many uses, IMR 3031 has long been a favorite of 308 Match shooters using 168-grain match bullets. It is equally effective in small-capacity varmint cartridges from 223 Remington to 22-250 Remington, and it’s a great 30-30 Winchester powder. IMR recommends always consulting www.IMRReloading.com for the most …Oct 18, 2020 · So my question is, out of the powders i have, all shown in the picture. What would be the best powder to use for reloading 45-70? (I only have large rifle primers cci #200/no magnums) I have two types of bullets for it. 525g, Hard Cast, WLN, w/Gas check and 350g, Hard Cast, LFN, w/Gas check They seem to be from "Beartooth bullets" Aug 2, 2011 · Around 44 gr. of IMR-4198 should get him in the ballpark for that velocity. IMR-4198 and H4198 are very good powders for the 45/70 from mild trapdoor loads to heavy hitting teeth rattling loads for lever actions or even stronger Ruger #1's and converted Mausers. 07-31-2011, 09:02 AM #8. paborn. An armed man in a citizen. An unarmed man is a subject. A disarmed man is a slave. After trying a lot of different powders in the 45-70, and getting some spectacular results, I can assure you that 4198 is about as good as it gets. I've gotten as good results with Rel7 and 5744. They will all shoot 1moa off a good rest.Introduced to the world just 1 year after the invention of .45 Colt, .45-70 Gov’t reigns supreme in the world of straight-walled cartridges to this day. Its name is derived from the bullet diameter (.45 in), the weight of the black powder used when it was created (70 grains), and the fact that it was designed and used by the U.S. ARMY in 1873.Does baby powder stop sweating? Visit Discovery Health to learn if baby powder stops sweating. Advertisement If you have problems with excessive sweating, you'll probably try a var...In both my 45-70 and 45-120, I found Win 748 to be the best powder and, in my 30-30 too. I tried 4198 (H4198 only), H4895 and RE15, none of them …Hodgdon pyrodex or 777 loads for .45/70. I'm planning on getting a Pedersolli Sharps in .45/70. I would like to use a BP substitute, mostly because of the UK laws about storing black powder. To use black powder I would have to get an explosives license and a special box to store the powder in. Some swear by black powder, others … The .45-70 is also known as the .45-70 Government, .45 Government and .45-70-45. It was developed by the U.S. government and continues to be one of their greatest cartridges, respected by hunters and shooting enthusiasts. The .45-70 was developed at the historic Springfield Armory in Massachusetts, and was adopted for use in the 1873 ... Re: Powder for medium 45-70 loads. by piller » Sat Aug 26, 2017 6:15 pm. I use IMR 3031 for my trapdoor level loads in .45-70 since I always keep some on hand for my .30-30 loads. It has always given good results for me and I have not tried many other powders for those 2 cartridges due to good accuracy and ease of finding IMR 3031 even …ballistics04. Looks like the current offering of Leverevolution powder may be too slow burning for the 45/70, which is probably why it's not listed in the Hornady reloading manual (or any other lreloading manual for that matter). RL-7 and H4198 are faster burning powders, which is what the 45/70 requires for proper ignition.Cast boolits typically use faster powders than jacketed bullets do due to their greater ease in passage through the barrel. 4320 is a couple of steps faster than 4350. Powders burn best within their own particular pressure range. The 45-70 would not be able to achieve 4350's ideal pressure level with a cast boolit. The .45-70 Govt is very effective out to around 150 yards with minimal bullet drop, but it’s capable of great accuracy and longer range shooting as well. Using modern, smokeless powder, most of the ammunition manufacturers currently produce a wide variety of loads of varying power for the .45-70. Low bulky density and superior ignition characteristics make 5744 an excellent choice for reduced loads in many rifle calibers and in large capacity black powder cartridges such as the 45-70 through 45-120 and 50-90 through 50-120. Made in Canada. Bulk Density (grams/cc) +/-2.2%.Just starting out to reload for the .45-70 and have been looking at various powders to use. (Note - I am not new to reloading and have been doing so since the mid 70's) Consistently IMR 3031 is shown as being a good across the board powder for this cartridge. I plan on strictly shooting 350 grain jacketed FP bullets with a standard large …410 gr. 420 gr. 440 gr. 460 gr. 473 gr. 485 gr. 500 gr. 535 gr. 576 gr. Powder: ALL. Accurate 1680. Accurate 2015. Accurate 2200. Accurate 2230. The .45-70 Govt is very effective out to around 150 yards with minimal bullet drop, but it’s capable of great accuracy and longer range shooting as well. Using modern, smokeless powder, most of the ammunition manufacturers currently produce a wide variety of loads of varying power for the .45-70. 19570. The 5744 bottle states that it works on 45-70. I use 5744 in my Savage 10ML-II Muzzleloader and it works fine. ( Warning, do not use smokeless powder in any muzzleloader that is not designed to shoot smokeless!) 5744 is also used by 30-30 reloaders that shoot Lead Cast bullets.May 28, 2021 · Mar 6, 2017. 3,515. 3,019. Before this primer crunch hit, 5744 was high on the list to do some testing in reduced loads. At some point I'll get around to it. I remember reading somewhere that it's an excellent powder for 45-70 in normal loads. Be interesting to see how it does for you Guy. Jun 7, 2021. #11. The 45-70 Government cartridge was introduced all the way back in 1873 for military use. The designation literally meant a 45 caliber bullet and 70 grains of black powder. The brass case has a large rim and straight but tapered case walls. It quickly became popular with hunters of big game, including buffalo, elk, and bear.9313 posts · Joined 2002. #9 · Apr 10, 2005. RayA - 2400 powder is at the top of my reloading data lists for the 45-70, so it's not a strange powder to use for cast bullets in that caliber. If you are not having good accuracy with cast bullets, don't blame the micro-groove barrel - they can shoot just as accurately as a Ballard cut if they ...argon99 said: Hi folks. I have a few rifles in 45/70. I have either used black powder or 3031 to load them with. The Sharps gets the black and the Handi Rifle gets the 3031 but I am undecided on the 1895 cowboy, haven't really tested it yet at the range with reloads. I also reload for a number of other calibers and bought a bunch of surplus 4895.When it comes to powder coating, finding the right company for your project is crucial. Whether you are looking to coat a small part or an entire vehicle, choosing a reliable and e...

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powder for 45-70

2 Nov 2022 ... Share your videos with friends, family, and the world.A medium burn speed propellant with many uses, IMR 3031 has long been a favorite of 308 Match shooters using 168-grain match bullets. It is equally effective in small-capacity varmint cartridges from 223 Remington to 22-250 Remington, and it’s a great 30-30 Winchester powder. IMR recommends always consulting www.IMRReloading.com for the most …ballistics04. Looks like the current offering of Leverevolution powder may be too slow burning for the 45/70, which is probably why it's not listed in the Hornady reloading manual (or any other lreloading manual for that matter). RL-7 and H4198 are faster burning powders, which is what the 45/70 requires for proper ignition.Powdered sugar, also known as confectioners sugar, is gluten-free. The only ingredients in powdered sugar are cornstarch and sugar that has been finely ground. The ratio of cornsta...Introduced to the world just 1 year after the invention of .45 Colt, .45-70 Gov’t reigns supreme in the world of straight-walled cartridges to this day. Its name is derived from the bullet diameter (.45 in), the weight of the black powder used when it was created (70 grains), and the fact that it was designed and used by the U.S. ARMY in 1873.Powder for medium 45-70 loads. by m.wun » Sat Aug 26, 2017 2:28 am. Looking to start some 45-70 reloading. Cast or jacketed are both open but …H335 is an excellent powder and is my "go to" powder for my 52-55 gr jacketed bullet 223/5.56 loads along with 125 - 150 gr jacketed bullets in the 30-30 and 308Ws. With cast, H335 is excellent as long as you have the bullet mass and pressure level so it ignites and burns efficiently. With your 45-70 loads that's where you are.At this time, a new cartridge was adopted, the .45-70 U.S Government. The .45-70 fired a .45 caliber 405 grain projectile over 70 grains of black powder for a muzzle velocity of roughly 1200fps. The official military designation of the new cartridge was the .45-70-405. Caliber was .458” (11.6mm) and rifling consisted of 1 turn in 20”.3777 posts · Joined 2012. #4 · Oct 22, 2020. IMR3031 is THE smokeless powder for the 45-70. I use it in my Pedersoli Springfield Trapdoor. I don't believe I use buffers except w/ black powder. Member: Orange Gunsite Family, NRA-Life, the American Legion, and 50-year LEO w/ a 45ACP 1911. All my 1911s are in .45ACP & 10mm.Yes Bill, W 748 is a good powder for 45-70. For top end loads. I have used it in 50 plus gr loads but the OP mentioned starting at 41 gr. he isn't developing enough pressure for a good burn. I view powder as having a "happy range" of pressures where they work best. He used a powder well below the range where it was happy. Sort of like using …Use dacron in the 45-70. I use 4895 (several flavors including "H") under 350 - 500 gr bullets for TD level loads (37 gr under a 405 gr cast bullet). I've also shot quite a few hard cast Laser Cast of 350 - 405 gr with 4895. Suggest you use a dacron filler (1 gr) under the 40 gr load for a start and work up to whatever 45-70 load level your ...the difference between unique and universal isn't the burn rate it is in the percentage of the powder consumed. 12grs of Unique on the 45-70 is only gonna burn about 11.8-.9grs of the total before the bullet exits the muzzle. 12 grs of universal will burn all 12 grs of universal and it will produce a few hundred more PSI in the bargain.Aug 4, 2018 · Cast boolits typically use faster powders than jacketed bullets do due to their greater ease in passage through the barrel. 4320 is a couple of steps faster than 4350. Powders burn best within their own particular pressure range. The 45-70 would not be able to achieve 4350's ideal pressure level with a cast boolit. 657. I have have an good, low pressure, accurate load using 26 grains of IMR SR4759 under a plain base 405 grain bullet for an average velocity of 1,301 fps at around 75 degrees. At around 38 degrees, the velocity drops to an average of 1,248 fps, but it is still very accurate. 09-10-2013, 01:16 PM #17. KirkD.Aug 11, 2014 · 522 posts · Joined 2013. #9 · Aug 12, 2014. i've loaded and shot a LOT of trail boss .45-70 cast boolit loads for 350, 405, 500 and 535 grains. the load formula is easy - start with 70% of the total tb powder that fits into the case with the bullet yer using - this is important as the bullet seat depth determines the powder volume in a 2.10 ... .

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