For this challenge, I used two firearms. In anticipation of pronghorn season, I brought out my 6.5 Grendel AR. For the other firearm, when Pete first brought up the challenge with the title “MOA All Day”, I immediately thought of a belt-fed with a quick change barrel, as they can shoot “All Day” a bit better than other firearms.
Firearm 1:
My Setup:
- Ohio Ordnance Works M240SLR
- Standard M240 Bipod
- Elcan Specter DR DFOV14-C2 set on 1x power as specified for 50yards per the challenge
- Black Hills 168gr BTHP
Photos:
Raw Data:
.948, .955, 1.212, 1.232, 1.365
Subtracting bullet diameter of .308 to get center-center:
.64, .647, .904, .924, 1.057
Average:
.834
MOA at 50 Yards (in inches:
.5235
MOA:
.834/.5235= 1.59 MOA average
Firearm 2:
My Setup:
- Les Baer Custom 16″ 6.5 Grendel upper receiver
- POF-USA P-415 lower
- Timney Trigger
- Magpul Furniture
- Grip Pod (1st gen)
- Swarovski Z6 1.7-10×42
- Alexander Arms 123gr Lapua Scenar BTHP
Photos:
Raw Data:
.60, .696, .833, .995, 1.15
Subtracting bullet diameter of .264 to get center-center:
.344, .44, .577, .739, .894
Average:
.5988″
MOA at 100 yards (in inches):
1.047″
MOA:
.5988/1.047= .572 MOA average
Observations:
There’s always room for improvement, and the fundamentals of shooting cannot be ignored. Shooting the 240 for groups was hilariously fun, despite the not-so-match trigger and the rather long lock time. The CX5936 Reticle is pretty thick and I did not have it mounted up in an M192 Tripod, so I had to be careful. I did really enjoy shooting the challenge with a firearm that can shoot MOA literally all day, given enough ammo and another barrel. As far as the 6.5 Grendel AR goes, I could improve, but I was pretty happy with the results. Where I got myself into trouble and larger groups was in getting impatient with the wind and rushing a few shots. This was a very fun challenge, I look forward to doing it again in the future with some different firearms. Thanks, Pete!