Graybeard Outdoors banner
1 - 6 of 6 Posts

·
Registered
Joined
·
172 Posts
Discussion Starter · #1 ·
If this works, it solves two problems. The high price of bullets for 50 bmg and the ban at most range of using bullets with a steel core. A friend made me an adjustable mold that casts a .503 dia bullet using #2 alloy or harder. My first batch is set at about 750 grs. Paper patches are 3.140" long and 1.5" wide. I dropped the bullets in a jug of water right out of the mold and they are 20 bnh or better. If anybody is curious I will keep posting how this works out.
 

·
Registered
Joined
·
172 Posts
Discussion Starter · #3 ·
The rifle is a single shot. Paper patch bullets have been fired in 30 cal up to 3000 fps with no lead. Years ago I loaded 500 gr PP in my .458 win mag with 70 grs of IMR 3031 without any lead problem. So-we shall see? This is going to be a challenge. The muzzle brake is a little tight and may need to be opened up.
 

·
Registered
Joined
·
204 Posts
Only thing I would be concerned with, was the patch starting to come off in the muzzle brake and causing the bullet to strike the brake. Otherwise, let us know how it works as I have a 705 gr mould for a PP bullet that I have been thinking of trying in the big 50. Otherwise I have just started playing with a 715 gr bullet out of my AR50. Two and a half inch group so far, at 100yds, but I found out alot at the range today. My LAR will go slightly over 1" at that range at 1937fps. Going to increase the powder charge to get 2200fps out of the 715gr bullet and see how it works.
 

·
Registered
Joined
·
1,037 Posts
I am curious, not because of the caliber, but because of other parameters you are using similar to mine.

One, you're using smokeless powder and probably pushing velocities similar to my .35 Whelen. Two, you're casting with wheel-weight alloy, which is what I'm using. Three you're mold is .503 diameter - is that bore diameter? groove diameter?

When you're using smokeless powder, let me know if you have better luck with full charges of slow powders or reduced charges of fast powders.

What is your after-patching diameter? How does that compare to bore and groove diameters?

And finally, how fast can you run air cooled wheel-weight alloy?
 
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top