View Single Post
 
Old 08-16-2011, 03:41 PM
Skip Sackett Skip Sackett is offline
Banned
 
Join Date: Mar 2006
Location: Hoosier Land!
Posts: 4,379
Likes: 587
Liked 576 Times in 307 Posts
Default

I have driven 12BHN to 1800fps in a 44Mag Marlin 1894 Cowboy Special rifle with no leading, not much accuracy either but not because of leading.

The absolute most important thing about shooting lead bullets, soft or hard, fast or slow is FIT, um, period. After that, lube, then hardness.

If you have a hard bullet, 30bhn and it is too small in the bore and you drive it moderately, watch out. Big problems are going to come in that bore! Remember, FIT first.

I cast and straight wheel weights for the most part are driven to 1400fps regularly, with no leading.

All of that being said: The harder the bullet the higher the pressure needed to get it to obturate, or seal off the bore. So, say you get the bullets you are waiting on, they are just right for size, then, you need enough pressure to get them to "squash" and fill the throat on your revolver.

It may be that you need a faster powder to get that to happen, depending on how hard the bullet actually is.

At any rate, numbers mean little, honestly. Starting point? Yes. To find out how your components/firearm fit together is part of the adventure. There is no "one size fits all" here.

Enjoy, and be safe!
Reply With Quote