04-01-2014, 02:37 AM
Yesterday I took my newly built Grendel to the range and shot 60 Hornady 123 gr. SST factory loads. The barrel is a Shilen 20" HBAR 1/9 twist. The first 3-shot group (0.420") was one of the best and I was very happy, but from there on it didn't go too well. These are my best 5-shot groups:
[ATTACH=CONFIG]5011[/ATTACH]
All in all I would say that I shot about 1.5 MOA groups. Honestly, I was expecting to do much better, but I believe the military trigger that came with my DPMS lower kit had something to do with it. The only mod I made to the trigger was to change the spring with a softer one, but even that wasn't enough.
I had another box of 20 rounds but since I was a bit disappointed, I pulled out my other rifle that I took with me and shot several 5 round groups. And just to add insult to injury, my second 5-shot group looked like this:
[ATTACH=CONFIG]5010[/ATTACH]
This was the best group out of all groups shot with this rifle which happens to have a Timney trigger, and I think would be very difficult to replicate it in the future with the same type of ammo.
What would you recommend for a target/hunting trigger for my AR?
By the way, the rifle that I shot that crazy 4+1 group is a sporterized 1930 Mosin Nagant and the ammo used was 147 gr. surplus... The fifth shot was the one that opened up the group; I should've stopped after 4 shots
[ATTACH=CONFIG]5011[/ATTACH]
All in all I would say that I shot about 1.5 MOA groups. Honestly, I was expecting to do much better, but I believe the military trigger that came with my DPMS lower kit had something to do with it. The only mod I made to the trigger was to change the spring with a softer one, but even that wasn't enough.
I had another box of 20 rounds but since I was a bit disappointed, I pulled out my other rifle that I took with me and shot several 5 round groups. And just to add insult to injury, my second 5-shot group looked like this:
[ATTACH=CONFIG]5010[/ATTACH]
This was the best group out of all groups shot with this rifle which happens to have a Timney trigger, and I think would be very difficult to replicate it in the future with the same type of ammo.
What would you recommend for a target/hunting trigger for my AR?
By the way, the rifle that I shot that crazy 4+1 group is a sporterized 1930 Mosin Nagant and the ammo used was 147 gr. surplus... The fifth shot was the one that opened up the group; I should've stopped after 4 shots