powder for 45-70 with a 450gr bullet

[173ABN]

I want to reload some 45-70 450gr bullets. I can't find what powders are good with the 450gr bullet. If you know or have a site with info, it would be a big help.

 

[451whitworth]

RL-7, IMR 3031, IMR 4198

 

[mgunderson]

Careful with reloading data for the 4570. Make sure you are looking at data for your vintage or pressure level. Imr 4198 should be on the short list.

 

[nakneker]

I want to reload some 45-70 450gr bullets. I can't find what powders are good with the 450gr bullet. If you know or have a site with info, it would be a big help.

What firearm are you loading for? I’ve been using a lot of AA5744, it’s a very versatile powder In 45-70, it’s given me my best accuracy and I can use it in my Marlin or Ruger #1 and adjust accordingly. The other powders mentioned above do a great job too.

 

[Charlie-NY]

In my Marlin 1895SBL, I've found that H4198 worked well with all bullet weights. I have also noticed that faster burning (less bulky) powders may be needed with heavy bullets that consume much of the case capacity.

 

[mdram]

im using 5744, tons of data in the western powder pdf

 

[Rook 6]

Swiss 1.5

 

[C_Ackley]

In my Marlin 1895SBL, I've found that H4198 worked well with all bullet weights.

H4198 is about the best high performance powder according to the numbers. A couple other powders do similar things with heavier bullets like Accurate 2230 and even H4895.
For bullets heavier than 420gr I find that loading them long is pretty beneficial, but that depends on whether one's action will cycle them at those lengths.

 

[David Milisock]

I want to reload some 45-70 450gr bullets. I can't find what powders are good with the 450gr bullet. If you know or have a site with info, it would be a big help.

There are 3 power levels for the 45-70, which one are you loading for?

 

[JSH]

I want to reload some 45-70 450gr bullets. I can't find what powders are good with the 450gr bullet. If you know or have a site with info, it would be a big help.

Your question is pretty generic.
There is a huge abundance of data out there.
As mentioned what are you loading it for, there are several pressure levels to work with.
Also, jacketed or cast bullets?
Even as big as the case is, it is fairly easy to work with

 

[BigBolt]

I want to reload some 45-70 450gr bullets. I can't find what powders are good with the 450gr bullet. If you know or have a site with info, it would be a big help.

Try this site very good loading info.

Shooter's Reference Cartridges

shootersreference.com

I typically use Berry's 350 grain bullets very accurate and there is a lot more loading powder for them.

350 Grain 45-70 Bullet | Cannelure Bullet | Plated Bullets

These universal 350 Grain round shoulder 45-70 bullets can be bought in bulk. Berry's Superior Plated Bullets are high quality, accurate, and consistent.

www.berrysmfg.com

 

[Scott-ak]

I only use the 45-70 for a couple things. 4198 or occasionally 4895 for hot-ish bear defense loads and bullseye w/pistol primers for a game we play every week. It's kinda like bowling but with guns

 

[cptjack]

What do they say on the other site

 

[XTR]

RL-7, IMR 3031, IMR 4198

These and 5744 are the usual suspects for the 45-70… that is until you switch to the Holy Black. Then the #1 choice is Swiss FFg, or maybe 1.5Fg

 

[tharger]

goex 2F

 

[Kalitrazescapee]

For smokeless loads I've used 3031...both Elmer Keith and trapdoor loads....they are very different pressure levels..the one thing about black is it bumps up

 

[Zero333]

45-70 best powders for 450 gr bullets and for up to 28,000 (25,000 - 28,000) psi chamber pressure and case fill ration 90% to 105 %... 1,400 fps to 1,500 fps +/-

Alliant AR-Comp
RL-10
RL-12
Accurate: 2015,.. 2520,.. 2460,.. 2230,.. 2495
Benchmark
H-335
H-322
H-4895
Varget
BL-C2
CFE-223
N-120
N-130
N-133
N-135
N-140
N-530
N-540
IMR-3031
IMR-8208 XBR
IMR-4895
IMR-4320
Win-748
Ramshot Wild Boar
Ramshot X-Terminator
Ramshot TAC
Ramshot Big Game

 

[snert]

OP hasnt been back since

 

[XTR]

@Zero333 , I’ve shot a fair bit of smokeless in my highwall. My experiences with smokeless rifle powders are that a lot, in fact most, of what you have listed in the above post don’t work well at all. Big volume straight walled cases behave differently. The problem is that the pressure drops off way to fast to get adequate burn from powders that slow. Trying Varget (because I kept a lot on hand) resulted in unburied kernels all down the bore. I’ve never had success with anything slower the range of IMR3031. The range most people find effective is from about AA5744 to IMR3031.

I get the same results and performance in my 50cal smokeless muzzle loader. (In fact I’ve even duplexed a bit there, the old long discontinued IMR SR4959 was the go to booster)

you may have different results but that’s the consensus I see on boards where folks shoot the old big bores, and my experience correlates.

 

[Zero333]

@Zero333 , I’ve shot a fair bit of smokeless in my highwall. My experiences with smokeless rifle powders are that a lot, in fact most, of what you have listed in the above post don’t work well at all. Big volume straight walled cases behave differently. The problem is that the pressure drops off way to fast to get adequate burn from powders that slow. Trying Varget (because I kept a lot on hand) resulted in unburied kernels all down the bore. I’ve never had success with anything slower the range of IMR3031. The range most people find effective is from about AA5744 to IMR3031.

I get the same results and performance in my 50cal smokeless muzzle loader. (In fact I’ve even duplexed a bit there, the old long discontinued IMR SR4959 was the go to booster)

you may have different results but that’s the consensus I see on boards where folks shoot the old big bores, and my experience correlates.

I understand exactly what you mean. I just thought near max / max loads might work just fine with those slower burning powders.