I'm considering ditching 5.56 (I'll keep what I have, maybe stockpile a little more, and definitely not sell anything off). Here's my reasoning:
- 5.56 doesn't suppress very well and has lots of back pressure
- .300Blackout (or .300BO) does suppress well and I can go from subs to supers with a mag change, sans fiddling with AGB (adjustable gas block) and/or buffer weight
- .300BO is WAY easier to reload, got a buddy on 10 reloads of his brass with no trimming
- .300BO is cheap to reload with cast and coated bullets. 5.56 is a pain in the ass to reload for
- there's a plethora of pistol cans that are rated for .300 supers (list to follow) and the HK 3 lug rocks as an attachment method
- 5.56 is not legal for hunting in my state