Posted: 3/18/2016 9:39:30 PM EDT
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EDITED BY GRIFFIN: CUSTOMER STATED NO ACCURACY PROBLEM WHEN SILENCER PROPERLY TIGHTENED. SEE OP POST DOWN THE THREAD.
Sighting in the new scope and trying out a new trigger. The Wilson Combat TTU-Mil is awesome...but anyway. Fired two ten round groups at 100 yards. First is supressor on, second is suppressor off. Gun is a built 18" with a Bartlien/Compass Lake SPR barrel, using the GA brake mount. Ammo was CBC/Magtech 77gr Mk262 clone-ish. Accuracy w/o the suppressor is about what I expect for the gun with the ammo on hand. Its pretty hot stuff, clocks 2754 FPS. I noticed when I went to take the suppressor off, it was a lot more loose than I expected, which suggests it backed off a bit while shooting. Does anyone else have similar experiences with the SPR? 
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I did go and retest. Shot numerous 5-shot groups, all were well under 1 MOA, some close to 1/2 MOA with the suppressor. I did tighten the snot out of it. I suspect I had some oil on the threads because when I went to take it off, it wouldn't budge. I eventually sprayed some Slip 725 degreaser on the back near the threads while pointing the upper down and it spun right off.
It was a freak cold day, and I was getting a lot of mirage with the cover off, but that's obviously no fault of the suppressor. First day of spring and it snowed here. |