I've had this rifle since last November, purchased new from Wolverine, but hadn't had a chance to pull the trigger until today due to the lack of a suitable place to shoot. Now that I have a new range membership, I took the rifle out today for a quick function test. Accuracy was not evaluated; I simply wanted to see if the gun would work.
This test was conducted at White Wolf's Range, about a 50 minute drive north of Winnipeg. Conditions were overcast over snow (making visibility an issue - yellow shooting glasses need to become part of my bag to give contrast on days like this), -2C and about 10mph winds blowing up range and right into my face. The hump through the fresh, wet snow deterred me from setting up my own targets so I plinked at what was there (target down the middle at approx 100m).
Set up:
Stock ISSC MK22 with a stubby vert grip and 3x Fake-OG on top. BUIS also installed.
Ammo used was 150 rds of CCI Stinger 32gr CPHP at 1640 fps (advertised) and 100 rds of CCI Segmented HP 32gr CPSHP at 1640 fps (advertised).
The first mag of Stingers (22 rds) was shot in slow time singles, just to assess basic functionality. I inserted the mag with the bolt closed, cycled the action and pulled the trigger. Click, no fire, light primer strike. I cleared and re-inserted the mag, again with the bolt closed. Click, no fire, light primer strike. 2 for 2...hmm. I cleared, held the bolt open and re-inserted the mag, then carefully watched the round travel as I released the bolt. Good feed. Trigger pull, bang. Repeated in slow time another 19 times until the mag was empty. Aside from the first 2 FTF, the mag fed properly. All casings were uniformly ejected up, right and slightly back, landing approximately 5-6' away.
I used mag #2 to recheck seating and my insertion technique. With a closed bolt and a firm insertion, I was unable to repeat my first headaches. The first round fed properly when I cycled the action. Mag #2 was fired in singles but slightly more quickly. No FTF, no FTE.
The remaining Stingers were fired without issue. I progressively increased my rate of fire, starting with quick double-taps until the mag was empty. I used a mag for triple, quad and quintuple shots in rapid succession. No issues. My final mag of Stingers was shot as rapidly as possible. Again, no FTF, no FTE.
Pin strikes on the Stingers (same on the SHP). To my eyes, they all seemed light but it fired, so it is what it is...:
The 100 rds of SHP were shot largely in the same manner: slow singles, double-taps, triples/quad/quint then a mag emptied as quickly as possible. On the rapid empty, I had 2 FTEs (casing partially extracted, jamming the action). The subsequent cycle to clear and feed the next round was smooth and rectified the issue. Other than those two FTEs, the SHP was issue free.
This thing definitely likes snappy ammo (Stingers for sure). Next time, I'll bring a wider variety to run through it and to figure out what will work and more importantly, what wont.
When the ammo was gone, I examined all the external rails and bolts. Everything was rock solid. I haven't pulled the internals yet but will likely replace the short bolt for a longer version on spec. The stock had/has the usual rattle but when locked in place, felt firm. Again, this wasn't about accuracy...it simply to make sure the rifle would function. And for what I put it through, I'm very pleased. Once the snow melts, I'll set about sighting it in for the BUIS and cheapo optics.
So aside from 2 FTF right at the start and 2 FTE during the final rapid fire, I got 246/250 rds off without issue. So far, so good.
This test was conducted at White Wolf's Range, about a 50 minute drive north of Winnipeg. Conditions were overcast over snow (making visibility an issue - yellow shooting glasses need to become part of my bag to give contrast on days like this), -2C and about 10mph winds blowing up range and right into my face. The hump through the fresh, wet snow deterred me from setting up my own targets so I plinked at what was there (target down the middle at approx 100m).
Set up:
Stock ISSC MK22 with a stubby vert grip and 3x Fake-OG on top. BUIS also installed.
Ammo used was 150 rds of CCI Stinger 32gr CPHP at 1640 fps (advertised) and 100 rds of CCI Segmented HP 32gr CPSHP at 1640 fps (advertised).
The first mag of Stingers (22 rds) was shot in slow time singles, just to assess basic functionality. I inserted the mag with the bolt closed, cycled the action and pulled the trigger. Click, no fire, light primer strike. I cleared and re-inserted the mag, again with the bolt closed. Click, no fire, light primer strike. 2 for 2...hmm. I cleared, held the bolt open and re-inserted the mag, then carefully watched the round travel as I released the bolt. Good feed. Trigger pull, bang. Repeated in slow time another 19 times until the mag was empty. Aside from the first 2 FTF, the mag fed properly. All casings were uniformly ejected up, right and slightly back, landing approximately 5-6' away.
I used mag #2 to recheck seating and my insertion technique. With a closed bolt and a firm insertion, I was unable to repeat my first headaches. The first round fed properly when I cycled the action. Mag #2 was fired in singles but slightly more quickly. No FTF, no FTE.
The remaining Stingers were fired without issue. I progressively increased my rate of fire, starting with quick double-taps until the mag was empty. I used a mag for triple, quad and quintuple shots in rapid succession. No issues. My final mag of Stingers was shot as rapidly as possible. Again, no FTF, no FTE.
Pin strikes on the Stingers (same on the SHP). To my eyes, they all seemed light but it fired, so it is what it is...:
The 100 rds of SHP were shot largely in the same manner: slow singles, double-taps, triples/quad/quint then a mag emptied as quickly as possible. On the rapid empty, I had 2 FTEs (casing partially extracted, jamming the action). The subsequent cycle to clear and feed the next round was smooth and rectified the issue. Other than those two FTEs, the SHP was issue free.
This thing definitely likes snappy ammo (Stingers for sure). Next time, I'll bring a wider variety to run through it and to figure out what will work and more importantly, what wont.
When the ammo was gone, I examined all the external rails and bolts. Everything was rock solid. I haven't pulled the internals yet but will likely replace the short bolt for a longer version on spec. The stock had/has the usual rattle but when locked in place, felt firm. Again, this wasn't about accuracy...it simply to make sure the rifle would function. And for what I put it through, I'm very pleased. Once the snow melts, I'll set about sighting it in for the BUIS and cheapo optics.
So aside from 2 FTF right at the start and 2 FTE during the final rapid fire, I got 246/250 rds off without issue. So far, so good.
