|
d-mon, When I called JD and asked him about the twist he used for the 510 whisper he told me "About nine".... 14 is pretty typical for 458 cal up to 600 grs so I went 9.25 and havent had problems. I dont suspect it would hurt anything to go a little tighter if theres any doubt as long as subsonic is the intent of the project and the Amax is the only bullet used.
|