I got a 357 SIG barrel for my SIG 40 S&W Auto.
Have a mold coming for my Master Caster the mold is being made by Accurate and the bullet is the 35-120G.
I made this bullet for a short fat 120 grain bullet suitable for the 357 SIG.
The bullet was designed using SolidWorks.
I generally powder coat and install gas checks on all of the cast lead bullets.
The neck on the 357 SIG is short and I wanted a deep gas check for installation on the bullet.
The deep gas check would keep the gas check of the neck of the case when the bullet is seated.
I made a gas check maker and made some gas checks as a test.
The gas checks were installed on a 125 grain cowboy action bullet to check the fit of the deep gas check.
Gas checks were made from cola can material .004 thick and aluminum roof flashing .008 thick.
The deep cup on the gas check results in a large diameter disc before the cup is formed on the gas check.
There is a lot of metal at the top of the cup that is fold over into it self when forming the deep cup.
The .008 thick roof flashing wants to tear while making the deep cup.
The cola can material just kinds of wads up while the deep cup is formed.
The cola can material made the best check and installs the best on the lead bullet.
When the mold arrives and a few bullets are cast then a new test will be made using the cola can material.
The 125 grain bullets had been coated with the HI-TECK coating previously.
Just another deal to mess around with.