Swift A-Frame Load Data

[Mad Mountain Mike]

I have some 350gr Swift A-Frames I want to load up for my 450 Marlin. It's the A-Frames designed for lever guns. I'm able to find 45/70 load data but nothing for the 450. If someone has a Swift manual I'd surely appreciate some help. I've seen 7 bears in the last few days and I'm getting itchy to go hunting.

 

[robtattoo]

What powders do you have on hand?

Just looking back through my data, I've only ever loaded the swifts once.
My COL was 2.55" & the load was 45gn of IMR 4198. For some reason I've only got one velocity reading written down: 2058fps & I didn't make any accuracy notes. I'm guessing it probably wasn't very good, because I know I ended up hunting with 350 Hornady fp.
Never did kill anything with it & then sold it.

 

[Mad Mountain Mike]

I have some hybrid 100, h322, h4198, h4895 & and some others. What length of barrel were you getting 2058 fps out of? I'm shooting an 1895G with a 18 1/2" barrel.

 

[robtattoo]

Same rifle 18½" barrel.

 

[robtattoo]

I'm sorry I don't have any better details! It was only the second caliber I ever reloaded for & I was literally just getting started. I didn't know how important good data collection & note keeping was back then!

I'm guessing that you could use the H4198 quite effectively. Maybe start around 43 & work your way up until you see pressure signs. It's a little slower than the IMR powder, but they're 'almost' interchangeable.