BCA put the uppers on for $264, which is a lot less than a RAR, so that made it a relatively cheap experiment. I notice Hornady now has a 170gr bullet for it.
I'm wondering if a typical 5.56 lower might benefit from a heavier buffer before mounting this upper?
I see there is a .355 165g FTX too, I wonder how they might fair in my 357 MAX. its a 357 bore and sees no difference with 358s, so I wonder how much another 001 or 002 would matter
