Originally Posted by
MistWolf
I went the adapter route with my shorty AR. It wasn't looking before groups went from about 6 inches offhand at 25 yards to 6 feet. Cleaned the lead out of the adapter and groups shrank to normal. Then again jumped up to 6 feet. Bought a dedicated upper from PSA and get 3-4 inch groups offhand and haven't had any problems with leading or groups opening up. If you're gonna shoot any amount of 22 rimfire, get a dedicated upper or S&W MP-22
Do remember what 22 rounds you are using? I generally try to use copper clad bullets - Federal 325 round value packs are what I shoot the most.
As far as I know, the only difference between the 'BCG' on the dedicated and the one on the conversion is the removal of the chamber adapter on the dedicated bolt.
Patriotism means to stand by the country. It does not mean to stand by the President... - Theodore Roosevelt, Lincoln and Free Speech, Metropolitan Magazine, Volume 47, Number 6, May 1918.
Every Communist must grasp the truth. Political power grows out of the barrel of a gun. Our principle is that the Party commands the gun, and the gun must never be allowed to command the Party Mao Zedong, 6 November, 1938 - speech to the Communist Patry of China's sixth Central Committee
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