Quote:
Originally Posted by MikeyB
I talked to my buddy that casted the bullets and recommended 15.5grs of W296 for the gas checks. I went with that.
This is for my Ruger Blackhawk and GP100's.
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If you are going for the same velocity, you can use a bit less powder going from jacketed to gas checked lead since lead has less resistance than copper and will run faster with same powder loads. I have used 16 gr. 296/550 primer with 358156GC with no leading. 14.5 gr of 2400/500 primer does 1336fps from my 4" 686. Love that bullet.