[BProckets]
Bill McAlister
billmac92364 at yahoo.com
Tue Sep 28 08:51:55 PDT 2004
Ok it looks like ill start with a 500g batch. Ill use Tom Perigrins book as a guid for the first batch. 1 question though. Do most of you make cakes out of the final milled BP? A lot of what ive read from verious posts do not mention cakeing the BP and then screening it but it is mentioned in many books.
Potrocs at aol.com wrote:In a message dated 9/22/04 2:46:35 PM Central Daylight Time, terry.mccreary at murraystate.edu writes:
Hi Bill:
"Too big" a batch is very situation-dependent, but the precipitation method as described by Peregrin starts with a 500 g batch. Beyond that... well, I don't know if I'd go beyond that for a first batch or two or three or ten...
Milling BP is a different matter, and I haven't milled enough to be an authority. You may want to check with your local pyro group as they probably have more expertise than I do. Or maybe someone else wants to speak up....?
Best -- terry
>>>
I've milled several hundred lbs, both for rocketry and BP firearms in my day. For media I purchased 3/4 round brass rod, cut em 3/4" long, and chamfered the edges. Using a 20 lb mill, I put 4 lbs of brass "pellets" into the drum with 12 lbs of chemicals, and mill for 6 hours, using a 2.5 sulfur content.
BTW, do that outside, in a safe place..
This will be my last post until Monday, I am leaving tomorrow morning to Denver to give my daughter away, which seems crazy considering how much she cost me ;-)
......
she's getting married BTW
Have fun and be safe, get stoopid with BP and it can and will put a world of hurt on ya. Read David's book is what I'm saying, and pay attention..
Pat G _______________________________________________
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