yes , i wanna design a valve for myself . long range shooting is so funny ,but small caliber can not make it , i mean , it;s difficult for .25cal ,
i think , i shall try .30cal , and more heaver slug , it get better BC
but before that , i need a big vavle , i can not buy one .
guys , you know how to design and make one ?
i think , i shall try .30cal , and more heaver slug , it get better BC
but before that , i need a big vavle , i can not buy one .
guys , you know how to design and make one ?