I’m in bit of a dilemma I have five ARs in different calibers 204 Ruger, 7.62x39,450 bushmaster,two in 556. I have a bolt action Ruger in 7.62x39,6.5grendel and 300 blackout. I have tried the AR blackout but could not get it to run with lead cast bullets so it went away and replaced it with a Ruger 300blk . I am wanting to build a ultralight hunting/planking A.R. 15 I am thinking of a 6X45 or a 556 in a 1/12 twist I’m wanting something that is a parent case of 223/556 and would be able to shoot a decent weight bullet to around 23-2400FPS. what would you all do and why
Thanks 43PU