....no, not the 45 Long
Here's my latest little project and I need to run it by you experienced handgun reloaders.
So the goal is to be able to shoot these 355gr hammers I cast in the 454 Puma levergun.
Loaded in 454 brass they won't cycle with this big metplat. In 45 Colt brass no prob. But, I'd like to be able to push these at 454 levels in the Puma. My 45 Colt load is 21.5gr H110 and is a max load and is accurate and about 1200fps in my SBH. I could stuff more powder in the case but don't feel comfortable doing that and the SBH doesn't need it. I also don't want to take the chance of mixing up ammo and shooting an over max/high pressure load in my wheelguns. So, I decided I'd trim 454 brass down, seat and crimp some dummy rounds to where they'd cycle in the levergun and see if I could have more case capacity than the 45 Colt brass. I ended up at 1.330, thus, the 454 Short is born (at least in my world) . 45 Colt brass is 1.285, 454 is 1.385 so I ended up in the middle The 454 Short is about half way between the 45 Colt and 454. Plus, since it's headstamped 454 that should help keep from accidentally stuffing them into my 45 Colt Rugers.
Now for a question and other observations. First off. Will the .050 or so more case length/capacity translate to any real world advantage? Secondly, I have in the past loaded a 360gr Cast Performance boolit in 454 brass trimmed to 1.365. That bullet seats deeper in the case than the 355gr Hammer I cast. I don't have one to measure but I do have this old pic and you can see the difference.
I bet it's close to .050 or more shorter. My observation/conclusion is that the 355gr Hammer in the 1.330 454 Short case has the same case capacity (or more) than the 360gr CP boolit seated in 1.365 454 brass. Therefore I should be able to use the 454 360gr load data as a guide for the 355gr 454 Short, and end up with a genuine 355gr Hammer 454 Casull load for the levergun.
Whew….. that was long. Any input?? Give me some feedback.