Powder for 45/70

broadhead67

broadhead67

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Which powder for my 45/70 GG.
- 1 bag of 350 gr. solid points
- 1 bag of 405 gr. hollow points
will be used mostly for deer in heavy brush , but we have had some very large black bears around lately.
 
broadhead67 said:
Which powder for my 45/70 GG.
- 1 bag of 350 gr. solid points
- 1 bag of 405 gr. hollow points
will be used mostly for deer in heavy brush , but we have had some very large black bears around lately.
Click to expand...

I would stick with smokeless powder... yes that is my recommendation.

;)
 
Alliant Reloder 7 is very well suited to the 45/70. It works very well with my Marlin Guide Gun with a wide range of bullet weights.

I've heard that H322 as mentioned above is also a good choice but I've not tried it.

405 gn hollowpoints? These aren't pistol bullets are they?
 
I've used almost every powder including RL 7 that burn rate works in a 45-70.

I now only use H322 for all bullet weights from 300gr to 550gr Jae-Bok Young Crater's.

Only time I use anything else is if I can't find H322.
 
I like H4198 for anything 45 Cal, from 45/70 Trapdoor loads up to 458 Win Mag. IMR-3031 is my second preference, but any powder in that burn range is well suited to the 45/70.
 
Never found any powder better than 4198 for the 45-70 (either Marlin or Mauser) in my meager powder box.
Although RL-7 does a nice job in the Marlin with 405s.
 
Many powders work well in the 45-70. For hunting loads I would probably settle for 4198, or 4895, either IMR or Hodgdons.
With 405 or 420 grain cast, I found 33 grains of 4198 to have good accuracy and appear to be very similar in recoil to a factory load. I went to 43 grains of 4198. It had great accuracy, but an awful whump on the shoulder with the 1895 model Marlin.
45 grains of 4895 is also a very accurate load, somewhat more recoil than a factory load.
Some experienced 45-70 reloaders tell me 3031 is ideal for heavier hunting loads.
Haven't tried 4320, but don't see why it wouldn't be good. Have tried Norma 203, which is very similar in burning rate to 4320, and it worked good at various loadings.
Hey, come to think of it, can't think of a rifle powder of faster burning rate than 4350 that wouldn't be good!
 
H4831 said:
Many powders work well in the 45-70. For hunting loads I would probably settle for 4198, or 4895, either IMR or Hodgdons.
With 405 or 420 grain cast, I found 33 grains of 4198 to have good accuracy and appear to be very similar in recoil to a factory load. I went to 43 grains of 4198. It had great accuracy, but an awful whump on the shoulder with the 1895 model Marlin.
45 grains of 4895 is also a very accurate load, somewhat more recoil than a factory load.
Some experienced 45-70 reloaders tell me 3031 is ideal for heavier hunting loads.
Haven't tried 4320, but don't see why it wouldn't be good. Have tried Norma 203, which is very similar in burning rate to 4320, and it worked good at various loadings.
Hey, come to think of it, can't think of a rifle powder of faster burning rate than 4350 that wouldn't be good!
Click to expand...

40 grains of IMR 4198 under a 420 GC cast clocked in at 1706 fps in a Marlin 1895, the GG was slightly less at 1630 fps with the same cast bullet and powder charge.
 
H4831 said:
Many powders work well in the 45-70. For hunting loads I would probably settle for 4198, or 4895, either IMR or Hodgdons.
With 405 or 420 grain cast, I found 33 grains of 4198 to have good accuracy and appear to be very similar in recoil to a factory load. I went to 43 grains of 4198. It had great accuracy, but an awful whump on the shoulder with the 1895 model Marlin.
45 grains of 4895 is also a very accurate load, somewhat more recoil than a factory load.
Some experienced 45-70 reloaders tell me 3031 is ideal for heavier hunting loads.
Haven't tried 4320, but don't see why it wouldn't be good. Have tried Norma 203, which is very similar in burning rate to 4320, and it worked good at various loadings.
Hey, come to think of it, can't think of a rifle powder of faster burning rate than 4350 that wouldn't be good!
Click to expand...
Ditto on the IMR 3031, (good accuracy & velocity for 350-405 weight) my second choice is Reloader 7 for slightly faster velocities.
In the past I have had success with IMR 4064, for heavy (500 grain) copper jacketed bullets.

A friend and I concur, anything approaching top loads in both IMR 4198
(+1800 fps) and IMR 4227, in copper jacketed, give an unordinate amount of extra push at one's shoulder.
Alot more recoil and high pressure signs, for a small increase in velocity.
Especially enhanced with a straight gripped, low comb, lever gun.
IMR 4198 is more often used successfully, in cast lead, medium bullet weights, at much slower speeds.
Such as H4831's recommended loads with this powder.
 
Over the years I have loaded and shot what would be close to 50,000 rounds and maybee even more 45-70, I am loading for five rifles these days from a trapdoor spingfield to ruger#1 and after trying most of the suitable powders I have found IMR 4198 to be the best for all bullet weights in all velocity ranges. The 45/70 is the greatest cartridge ever developed, will penatrate both shoulders and kill a buffalo at 1000 yards with less than 70 grains of powder and a muzzle velocity under 1500 fps,... I just gotta get me a gattling gun:D
 
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