Pete D. said:
"penny-apiece-marbles"
Remember - they are only a penny a piece/ penny a shot if you shoot ALL of them. If I have a thousand and only 200 turn out to be shootable in my gun, then they are five cent apiece marbles.
I mention this because I picked up a few hundred 15mm marbles to experiment with, figuring a few would be useful in my .62. In the first hundred, there are none larger than .570 - and only two of those.
Maybe I should have gotten 16mm.
No, I did not use Roundball's supplier - that may have been a mistake.
Pete