When shooting 300 Winchester Magnum, the RR models (all lengths) offer over 60% recoil reduction when compard to a bare muzzle. For comparison’s sake, a normal MAGNUS-CB with flat endcap only has a 29% reduction on 300WM. See the table at the top of this page for all the recoil reduction data (click on it to make it larger!).

The RR models of each variant add 1.5″ to the overall length and add approximately 2.4 ounces.

Minimum Rated Barrel Lengths

• 5.5″ .300 Blackout (Full power and Subs), 6.8 SPC, 7.62×39,
• 8″ .308, 6.5 Creedmoor, .260 Rem, 6 Creedmoor, .243 Win, .22 Creedmoor, .223/556 (SEMI AUTO)
• 10.3″ .223/556 (FULL AUTO per Dominus-SR schedule)
• 12″ 26 Nosler, 6.5 SAUM, 6.5 PRC, 7 WSM, 7 SAUM, 7 STW, 7 RM, 300 WSM
• 14.5″ 300 PRC, 300 RUM, 7 RUM, 300 WM, 300 WBY, 6.5-300 WBY
• 16″ 300 NORMA, 28 Nosler, 338 Lapua

___LEGAL INFO___

J&A Outdoors will only ship suppressors to Class III FFL holders. BATF regulation information for Suppressor ownership are as follows:

Be at least 21 years of age.
Be a U.S. citizen. 
Have no felony convictions or domestic violence convictions. 
Have no dishonorable discharge. 
Not deemed mentally unstable by a competent authority. 

The NFA rules/laws are posted through the BATF website. At this time, the following states ALLOW private ownership of suppressors: AL, AK, AR, AZ, CO, CT, FL, GA, IA, ID, IN, KS, KY, LA, ME, MD, MI, MN, MO, MS, MT, NC, NE, ND, NV, NH, NM, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WA, WV, WI, and WY. CA allows class 3 dealers and class two manufacturers to possess suppressors.