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Old August 31, 2012, 05:24 PM   #2
Chowmif16
Senior Member
 
Join Date: April 22, 2012
Location: Huntsville, Utah
Posts: 106
Grease cookie

Moloch,
most guys who use a grease cookie will insulate it from the powder, to prevent migration of moisture into the powder.
Many folks use a thin disc of wax paper. There are several posts that indicate a thick fiber or cardboard overpowder card will scrape away any lube from the grease cookie. I have not done any empirical test to support or disclaim this, although I know that Paul Matthews writes extensively about the use of a grease cookie for LRBPCR.
I have seen evidence of grease cookies sticking to the bullet. I found a portion of a grease cookie in the bullet hole on the target at 25 yds (.45 Colt rounds, not 45-70).
I am just about to start working up new loads for my 45-70 Sharps, and am pondering the use/or not of a grease cookie as we speak. I am considering getting rid of the grease cookie and using either a blow tube or wiping between shots, and relying on the lube on the bullet.
For my .45 Colt, I have switched to the PRS Big Lube bullets, which are showing promise of not needing a grease cookie.
Cheers,
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