I shoot 220 grain boolit pushed by 6 grains AP50. Stabilises just fine. If using a Bisley they are quite large in the bore and need .314 projectile. The Bisley likes the boolit seated out as far as the mag will allow and this will engage the lands and straighten the projectile and centre the case in the chamber. The Bisley with this combination is very very accurate . Havent measured the speed but similar to a 22lr.
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