h110 and 45-70

[john58e]

I came across 2# of H110 powder for free and was thinking today that I have used 2400 powder before reloading My Marlin 45-70 Guide gun, with 26.0 grs. around 1,350 fps. I Normally use IMR-4198 or 3031.
Both powders seem to use about the same grs. in a 357 mag. loads.
I would have a way to use up the powder and a plinking load at the desert range.
Thought a starting load at 22 grs should be safe? I'm not going to make up a load until I get some input from you all.
Thanks !

[snowdog650]

Which bullet? There's quite a range for 45-70 ... ~250 grains to ~400 grains.

[john58e]

Sorry! 405 gr cast lead.

[rjacobs]

Hodgdon has no data for H110 in 45-70. DONT DO IT.

Acceptable Hodgdon powders are powders that we use in 223(4198, 322, 335, varget)

H110 is a magnum pistol powder.

If you do do it, pull the trigger with a string from 25 feet away and watch the gun blow up.

H110 is NOT a powder that you mess around with with no data. Even WITH data, I have had issues with H110 causing weird pressure way earlier than it should have.

[TomMcC]

I would also add that if you tried it the loading density would be way too low. H110 and WW296 need to be used exactly as listed in the manuals. IMO there would be too much air space in the case causing probable weird ignition, thus a weird pressure curve.

[john58e]

Thank you,
With my light loads of 2400 a different forum told to use polyester filler to keep the light loads of 2400, red dot, unique, 4227 to name a few.
Even with my light loads of 4198 and 3031 filler is key to consistent burnings.

[Bimmer]

Both powders seem to use about the same grs. in a 357 mag. loads...

AFAIK, H110 and 2400 are close, and they're both used for .30 Carbine... H110 might even be the original powder for mil-spec .30 Carbine.

However, if there's no data for H110 and .45-70, then I wouldn't use it.

I'm sure you can find somebody here or on GunBroker who would be glad to have the H110 — I would.

[Chumly]

Close doesn't cut it with reloading / substituting powder.

Edit

I had my data points mixed up. However, I still stand by my statement that I would not load without specific reputable data. It's just not worth it.

Sent from my SPH-L720 using Tapatalk

[jl1288]

Please take some very humble advice concerning H110 and W296. I know you are not asking about 296 but these two powders have a narrow range in which they work well. Work well they do, but in large volume cases they don't behave very well when light/heavy charges are used. I have personal experience with both in 45 colt and have moved on to other more predictable powders. With the absence of credible data I would not recommend H110 for a light load in 45-70. Trade for some 4198 or 3031 those have served me well in 45-70. Good luck, and good shooting.