My new balls, the 380s and the 451s come in today. Shipping was quick, price was good, but when I cut the 2 boxes open, they were cast balls, as RK, I think, said, and I measured them. They ARE 380 and 451, mebbe 452, or close, but they have a hell of a big sprue cut on them, near a 1/4 inch flat on what I will call the top, because when I shoot them I will do my damnedest to put the flat either on top or on the bottom. If the fire does cut the ball, I think first I will make sure the flat is on the bottom.
Calipered, the sprue cut is near 25 thou off the diameter. Put the flat on the chamber wall, a big hole for fire to come out alongside the ball. Am not worried about chainfire from this, I do grease the ball after it is seated, just expected a smaller sprue cut.
Haven't weighed them, too cold in the garage, but think they will be within tolerance. Hey, a little lighter, they'll fly a little faster, right?
Cheers,
George
Calipered, the sprue cut is near 25 thou off the diameter. Put the flat on the chamber wall, a big hole for fire to come out alongside the ball. Am not worried about chainfire from this, I do grease the ball after it is seated, just expected a smaller sprue cut.
Haven't weighed them, too cold in the garage, but think they will be within tolerance. Hey, a little lighter, they'll fly a little faster, right?
Cheers,
George