Any break would work better then an A2 flash hider.
The standard timing nut provided with the Apollo S will successfully shroud over diameters 7/8" (0.875") or less.
Your rifle will need at least 0.6" of thread length to successfully use this muzzle brake in conjunction with the provided timing nut. If the thread length is shorter, a traditional crush washer can be used in the place of the provided timing nut to allow proper timing and torque.
The Apollo S muzzle brake should work with most PSA AR 15 Nitride Edition rifles.
As long as your barrel is at least 14.5", the Apollo S 6.5 should work great with your rifle chambered in 22-250 with 5/8 x 24 threads.
The Apollo S muzzle brake is 2.94" by itself, and about 3" in conjunction with the provided timing nut and spacing collar.
The Apollo S muzzle brake is 2.94" by itself, and about 3" in conjunction with the provided timing nut and spacing collar.
Yes, the Ultradyne Apollo S Compensator model MPN:UD10250 will also work with rifles chambered in 6.5 PRC that use 5/8x24 threads as both 6.5 Creedmoor and 6.5 PRC have the same bullet diameter.
The Ultradyne Apollo S Compensator 6.5 Creedmoor model has threads for 5/8x24. So it will work with a Ruger American Predator in 6.5 Creedmoor.
The Ultradyne Apollo S Compensators will not work with a rifle chambered in 300 Ham'r. You will need the .308 model of the Ultradyne Apollo Max Compensator at the link below. This is model number UD10710. It will work with your barrel if it is threaded for 5/8x24 and has a minimum thread length of .600".
https://www.opticsplanet.com/ultradyne-apollo-compensator.html?_iv_code=3HE-BMB-APND-UD10710