Based on Lyman's price for .41 calliber gas checks I should market them myself. I have no idea of what you pay for .50s since I have never seen them for sale. Where do the commercial casters get their .50 caliber gas checks?
lyman makes the only .41 I know of and theres a dentist in South Carolina I think that makes the .50s and they were $40 for 500 if my memory serves me I bought a bag a couple years ago and dont use them much. At the velocites that the .500 line shoots at there really not necessary.
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