So I hadn't really sighted in my Ruger Mark IV .22 rimfire after adding the suppressor. It did change point of aim a bit. I decided to sight it in today.
For the gun geeks out there, this is a Ruger Mark IV .22-45 Tactical model. It's called a .22-45 because of the Colt 1911 .45 style grip angle. This "Tactical" model comes with both the top and bottom rail and is a little heavier than the "Lite" versions (I prefer the weight and rails of this model). It has a Vortex Venom Red Dot scope mounted on top, custom TandemKross grips, and of course, upgraded internal Volquartsen springs and flat trigger. The suppressor is a SilencerCo Switchback. The suppressor can be configured in three different lengths. It is pictured at the longest length.
For grins and a stable shooting platform to sight in, I decided to mount my Atlas Bipod to the bottom rail today. It just quick clips on and off, and the lower rail can also accept Picatinny lights, lasers, etc. should one choose. I will sometimes mount an O-light to it for quiet night varmit removal.
Anyway fairly happy with how it performed. Here is the first 10-shot group at 15 yards, which held nicely, but a little low. This is my preferred sighting in distance for this weapon/sight. If I zero here, it holds constant out to 25 yards and shoots about an inch high at 7 yards.
This is the second 10-shot group 15 yards after adjusting the sight, more on-center, but a couple fliers.
Then I decided to move out to 25 yards. This opened up quite a bit, but would still get the job done. First pic above is 10 shots at 25 yards. Second pic below is 30 shots at 25 yards.
I ran out of staples and wasn't able to change targets, so just kept adding them. I found it strange that there seemed to be almost two different groupings, one around the center and one near top right. This was with same aim point for all. Since it was suppressed and I wasn't wearing ear muffs, I could distinctly tell a difference in the sound with some shots being much louder than others. Most were still in a 3 inch zone of that middle inch square, so definitely melon capable at that distance.
I'm not positive that there was a difference in velocity since I wasn't measuring, but will check that out in the future. Perhaps the suppressor is getting dirty and needs to be cleaned by now. It's been a few hundred shots, but I"ve packed away most of my cleaning gear so it will have to wait until our move.
So far loving the suppressor. No accuracy comparisons yet vs. the muzzle brake, but will do some as ammo becomes more available.
Enjoy!
