My 625 JM leaded very badly with H&G#68 bullets that I sized at .453, lubed with Alox, used 6 grains of Unique......and in about 3-4 cylinders downrange the bore was almost a smooth bore.
Had to use Dad's stash of Mercury to get to the bottom of it......now all I shoot in it are 230 FMJ's.....wasn't going to go through THAT again!!
Randy
PS. The exact same round in my 25-2 6" barrel shoots extremely well.....different rifling technique.
Last edited by growr; 08-17-2020 at 05:48 PM.
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