Grandmasta J I wish I had the money to burn 300. But the rattler I went with (or SBR AR 300) don't have ot be high-use guns. They are common enough that I can train with a 22lr upper, or anything else with AR controls transfers over. So really I don't need to spend any more ammo than needed to sight in and verify function from time to time.long winded reply
300 subs are hilarious to shoot, but really a 220 gn round going subsonic is just a 45acp, so not really worth the expense to me. May as well go supers