IMR4198 and .45-70

[badkarmamib]

Well then, just for killing paper, you are wasting expensive bullets and extra powder. Even a 300gr Cast Bullet will kill deer and bear too at fairly low velocities.

There is no need to push a 300gr JHP bullet to 1850 fps to kill paper or deer. Load up some Trapdoor type ammo from the Lyman manual, find an accurate load and call it good even if it's below 1850 fps.

I looked at the rifling in his bore, and it reminded me of Marlin's micro-groove, which seems to clog up quickly with lead, so I thought the Sierra HP would be a good starting bullet. It was only about 50% higher than lead when he was on Midway. Still WAY under factory ammo prices. And yes, I understand that accuracy trumps velocity, especially with a hammer like the .45-70. Again, this is a new caliber for me, and I appreciate everything you have said, as well as others. Are my concerns on the shallow rifling and lead unfounded?

 

[ArchAngelCD]

OK fair enough. Take that 300gr Sierra bullet and load Trapdoor loads from the Lyman manual and look for accuracy instead of velocity goals.

 

[Charlie98]

Are my concerns on the shallow rifling and lead unfounded?

They can be... It just depends on your barrel. I shoot cast in 5 different lever actions, including 3 Marlins, and I don't have problems with leading. The key is proper bullet size... seriously.

If you wind up handloading, an easy to make hunting load would be the LazerCast 350grn cast bullet at 1400-1500fps with something like IMR3031 or even IMR4895 (or equivalent... H322, Rl10x or Rl12, etc...) It's slow enough that leading won't be a problem, it won't brutalize your shoulder, and the deer won't be alive to complain about it.

 

[joeanybody]

I load 3 rounds for 45-70. I also load for different velocities. I use 4198 and unique. Ill have to check my logbook when i get home but i am pretty sure my hornady leverrevolution duplication load (hornady 325gr ftx bullet) i load on or about 41 grains of 4198. I also use the sierra 300 hp and if i recall it was around 45 gr of 4198. Lastly i use a 330gr gould express lead hp bullet. I drop down to trapdoor velocities with that at around 26 gr of 4198.just for kicks and giggles i also run 12 gr of unique with the 330gr bullet to duplicate black powder ballistics without having to clean my rifle every round.45-70 is a reloaders dream cause u can do so much with it. As per the difference in powders listed from different sources. I use bullet manufacturers first then go with lyman after that. Also, your henry will use the same as the marlin section of the book. You can load to trapdoor as well. You should not use the ruger #1 load data. That is a mauser action and can take more pressure.happy reloading!