So, here's the matchup:
Aguila Interceptor
40 gn solid
1470 FPS
CCI AR Tactical
40 gn solid
1200 FPS
CCI Greentag
40 gn solid
1070 FPS
Two different rifles. Although similiar in that they are both 10 22s with nearly identical internals (both outfitted with improved firing pin, hammer spring and 2 3/4 pound trigger setups, one is an adjustable overtravel, the other is not, the difference is barely noticable) the major difference is the barrels. One is a Majestic Arms 17" 1:16 twist aluminum, the other is a custom 16.5" 1:20 twist aluminum made by Clint Beyer of Beyer Barrels. They both wear 6x24 scopes, one a Barska, the other a BSA.
Originally the idea behind the custom twist was to slow down the spin on some of the newer hypervelocity smaller bullets and Stingers. That testing is still ongoing. But for today I wanted to test the Interceptors against my favorite bulk, the AR Tactical. I was interested to see how the faster round would group and to see if there would be any significant difference in grouping between the two barrels. The Greentags were thrown in to extend any trending curves should there prove to be any. one thing going for us today as a sort of control is that all three bullets are the same weight and type.
Ok. First, I weigh my bullets. Yeah, I know, a little obsessive, but if it can be assumed that the bullet castings are the same and the casings and primer load are consistant than any difference in weight could be atributed to powder load which will translate to speed variables. A while back in a different series of tests I determined that in high velocity 22LR a difference of just 55 FPS equates to 1 MOA in vertical stringing. Think about that. That's a lot of change. And it has been proven over and over again. I routinely change ammo and calculate the speed difference, make a scope adjustment and continue to stay in the red. However, in this test I threw in the GTs almost as an afterthought and didn't get to weigh them. I figured I would let them stand on their own as a "competition" ammo. But I did weigh the ARs and the Interceptors, and here is what I found.
Aguila Interceptor
40 gn solid
1470 FPS
CCI AR Tactical
40 gn solid
1200 FPS
CCI Greentag
40 gn solid
1070 FPS
Two different rifles. Although similiar in that they are both 10 22s with nearly identical internals (both outfitted with improved firing pin, hammer spring and 2 3/4 pound trigger setups, one is an adjustable overtravel, the other is not, the difference is barely noticable) the major difference is the barrels. One is a Majestic Arms 17" 1:16 twist aluminum, the other is a custom 16.5" 1:20 twist aluminum made by Clint Beyer of Beyer Barrels. They both wear 6x24 scopes, one a Barska, the other a BSA.
Originally the idea behind the custom twist was to slow down the spin on some of the newer hypervelocity smaller bullets and Stingers. That testing is still ongoing. But for today I wanted to test the Interceptors against my favorite bulk, the AR Tactical. I was interested to see how the faster round would group and to see if there would be any significant difference in grouping between the two barrels. The Greentags were thrown in to extend any trending curves should there prove to be any. one thing going for us today as a sort of control is that all three bullets are the same weight and type.
Ok. First, I weigh my bullets. Yeah, I know, a little obsessive, but if it can be assumed that the bullet castings are the same and the casings and primer load are consistant than any difference in weight could be atributed to powder load which will translate to speed variables. A while back in a different series of tests I determined that in high velocity 22LR a difference of just 55 FPS equates to 1 MOA in vertical stringing. Think about that. That's a lot of change. And it has been proven over and over again. I routinely change ammo and calculate the speed difference, make a scope adjustment and continue to stay in the red. However, in this test I threw in the GTs almost as an afterthought and didn't get to weigh them. I figured I would let them stand on their own as a "competition" ammo. But I did weigh the ARs and the Interceptors, and here is what I found.