Nothing?

by cas, Monday, May 27, 2013, 08:04 (4143 days ago) @ lee jurras

That's what I was shooting. AFAIK the throat on the Blackout is longer, and the neck MIGHT be a fraction larger (though I'm not 100% sure on that) I've owned maybe 6-7-8? things chambered for it, by almost as many builders (300 whisper, 300/221, 300 Fireball) and not a one of them was throated the same.

THAT is what the AAC people are claiming, that that was the problem and that they standardized the industry.
My comment to them was, that's what the guy before them thought too until you came along. And that's what the next guy can say as well.

SAAMI, marketing and the "black rifle crowd" have made it a success, at least for now. But the misconception of many is quite amazing. It's funny to read what some people expect from the round, thinking it's somehow a .308Win or better class cartridge, or built for long range.