View Full Version : 220 load ?
I want to use longshot under these but i can't find any data. I was thinking around 8gr start. Sound reasonable?
Which bullet? Which barrel?
I get the beginnings of hairline smiles in a stock G20 at 7.8, but am OK below that w/ 220ish lead.
In a LW barrel, I start at 7.8 and work up, but 8.2(I think) is 36Kpsi under a 200g jacketed, so I assume that you are overpressure by 8.5 if not sooner. It won't show in the AM barrel as a smile, but it will loosen the primer pockets when you run them hot.
I don't know anything about the 220g plated bullets, or their pressures.
Ones I got from yondering on here. I just shot 15 at 8gr in my long slide with lone wolf. The brass is close to max. Will not go more.
It looks like tried those at 8.5g of LongShot in my LW barrel. The primers were still round, but I wasn't comfortable running them that high just because they would smile badly in the stock barrel at that charge weight, so I know the pressures are getting up there. In the 5.3" barrel they made 1180, FWIW. Running about 8 grains gets you the best velocity without going up over 8.5, it slows down some in there, then starts to pick back up as charge weights go up.
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