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Casting lead for subsonic 300blk

Posted: Tue Nov 08, 2016 3:35 pm
by justang1997
Anybody here doing this? Looking at the midway lee blackout mold but I have seen some mixed reviews.

Re: Casting lead for subsonic 300blk

Posted: Tue Nov 08, 2016 9:41 pm
by samb.
I have everything but no time yet. You planning on powder coating? You can borrow my mold if you want to give it a try, I just need it back eventually. 247gr mold I think I will have to look tomorrow.

Re: Casting lead for subsonic 300blk

Posted: Wed Nov 09, 2016 7:58 am
by justang1997
No powdercoating. Maybe using gas checks and a harder alloy.

Re: Casting lead for subsonic 300blk

Posted: Wed Nov 09, 2016 9:07 am
by samb.
justang1997 wrote:No powdercoating. Maybe using gas checks and a harder alloy.
If you are only using subs you shouldn't need gas checks. I want to powder coat eventually just so I won't have any chance of leading my cans, plus cool colors.

Re: Casting lead for subsonic 300blk

Posted: Wed Nov 09, 2016 11:13 am
by guncrank1
If you use sub sonic , leading is not a issue
Harder alloy needs wheel weight or similiar or tin

Re: Casting lead for subsonic 300blk

Posted: Sun Aug 13, 2017 2:10 pm
by Misterfixit
I've had pretty good luck with the Lee Blackout mold. 2400 seems to be a pretty good powder.

Re: Casting lead for subsonic 300blk

Posted: Sat Nov 18, 2017 2:58 pm
by Elkins45
You can always water drop your bullets to heat threat them. Even wheelweights are plenty hard when you drop them directly from the mold into a bucket of water.