Tb54
Pilgrim
Just cast my first batch of .535 round balls—and weighed them. I got :
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10@230gr
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I’m useing an RCBS balance type powder scale, so rather than sliding the weights back and forth I set them and slid the 1gr weight and grouped them. I double checked my max weight of 230.9 and did get that as my max. So far I plan to recast everything in the 228.5gr and lighter groups, and am re weighing the rest for 229.5 and heavier to start with for my load work up for accuracy.
my question is how negligible is a .5 gr difference in ball weight for accuracy with a 60” twist since the ball is only revolving 30 times to a 50yd target? I noticed that some of the balls weiing 229.5 gr had small air bubble gouges on the surface and others of the same weight did not, meaning the voids are closer to the center, therefore of less consequence in 30 revolutions.
I’ll post a pic if I can figger how.
[email protected]
10@230gr
[email protected]
[email protected]
[email protected]
I’m useing an RCBS balance type powder scale, so rather than sliding the weights back and forth I set them and slid the 1gr weight and grouped them. I double checked my max weight of 230.9 and did get that as my max. So far I plan to recast everything in the 228.5gr and lighter groups, and am re weighing the rest for 229.5 and heavier to start with for my load work up for accuracy.
my question is how negligible is a .5 gr difference in ball weight for accuracy with a 60” twist since the ball is only revolving 30 times to a 50yd target? I noticed that some of the balls weiing 229.5 gr had small air bubble gouges on the surface and others of the same weight did not, meaning the voids are closer to the center, therefore of less consequence in 30 revolutions.
I’ll post a pic if I can figger how.