45-70 Cast Boolits.

[pistolman44]

Got a custom mold from Accurate that cast 2 boolit styles. 350 GC and 405 GC. what I need to know should I water drop or air cool the boolits? Will be made from COWW. I will be loading these over 14 or 15 GR of Unique and sized to .459 for my new Marlin GG.

[357maximum]

I use AC 50%COWW/50%soft/pure lead in all my 45/70 loads and I run mine a bit to quite a bit warmer than you are talking about. You do not need to waterdrop your COWW and might actually find ac 50/50 to be more accurate. That is a question for professor gun to answer....as in try it several ways and see what YOUR GUN likes.

[Larry Gibson]

357maximum is spot on.

Larry Gibson

[grouch]

As Maximum says, the only way to know for sure is to try it. My 45 70 prefers 20:1 lead and tin, as do most(not all) of my rifles. I'm using 25gr of 2400 in mine with a 420gr bullet, have used 13gr of Unique with good results. There's no need to harden your alloy beyond 20:1 until you're a long way up the scale, if ever with a 45 70.
Grouch