I always run it in the correct position, just there is no difference in the action cycling or POI.

I have also found that it really doesn't make a noticeable difference in the two settings for the gas piston. Subsonic ammo will NOT cycle the action and you want to make sure that a bullet does not get lodged in the barrel and run another one right behind it. I don't give it much thought anymore except to always make sure that I see a bullet impact on the berm. I started the 180gr loads seated to the cannelure with 12, 11. No difference in the bullet strike and everything looked good. Primers used in the test were CCI 200 Large rifle and Winchester 9 Magnum. After confirmation of no keyhole, then I added the suppressor and did the same again. With heavier grain weights, subsonic 9mm ammo retains impact power despite the lower velocity, translating into a highly effective round for hunting or self defense. This design results in mild felt recoil and ultra-quiet performance when run through a suppressor. The first shots were scary as I just paid $600 to have the can updated to the latest internals and was worried about a baffle strike.ДЇirst shot, without the can, on cardboard, 10 feet away and a perfect circle. Subsonic 9mm ammunition is engineered to have a velocity below the speed of sound. EGR confirmed that the 1:12 twist would not be an issue. Here are the details.ДЄfter much research and conversations with several people in the industry, I shoot EGR 180gr 'Thumper' through an AWC Thundertrap. I am actually getting it back out tomorrow at will post a video of everything.

I shoot subsonic ammo suppressed on occasion ($2 round).

Subsonic rounds without suppressor