Quote Originally Posted by markm View Post
Not sure what WOA is currently offering in chambers... but my 16" WOA has a wylde chamber that isn't 5.56 pressured ammo friendly. (I get case buldge with hot ammo)

I like the option of shooting hot ammo in a "precision" style AR.
I have a WOA service 5sra7M4 with what they list as “223/556 Wylde” chamber.

https://www.whiteoakarmament.com/whi...-m4-ramps.html

I’m running a 75gr BTHP load in Speer nickel cases that is (at least book data wise) right at 62,000 PSI so right there at maximum SAAMI 5.56mm 62gr pressure. I don’t notice any issue with case bulge? Where is the case bulge, right near base? And how much? I’m currently even seeing flattened primer and some totally loose after firing and cases still drop right into a case gauge after.




Andrew - Lancaster, CA
NRA Life Member, CRPA member, Calguns.net contributor, CGF / SAF / FPC / CCRKBA / GOA / NAGR / NRA-ILA contributor, USCCA member - Support your defenders!