All are pinned. I usually shoot either wadcutter or semiwadcutter hard cast bullets sized .452" though occassionally I will shoot some jacketed bullets also sized .452".

All four revolvers shoot tighter than I can hold but that isn't saying much these days. More to the point, they shoot as tight as my 25-2 .45 ACP target guns and THAT ought to be close enough for anybody.

If you believe the throat sizes are giving you problems, try some very soft bullets to see if there is any difference. If the problem is extreme, hollow based bullets may be another option.

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Big bang, much smash'em.