I got this rifle from the gunsmith a couple of weeks ago and broke in the barrel this last weekend.
Origin action
Krieger 26" barrel, 224 Valkyrie 6.5 RH twist.
KRG W-3 Chassis
Burris XTR Tactical Signature Rings set for 40 MOA. The base is 20 MOA. So I have a total cant of 60 MOA built in.
Vortex Gen II Razr 4.5-27X
Trigger Tech Diamond trigger.
Harris Bipod with Hawk Hill spiked feet (why get a new bipod when an old Harris works just fine?)
Normal protocol for the barrel break in was followed; fire one shot, clean, fire another and repeat.
Now for the embarrassing part. The groups were nothing to brag about. I only put 66 rounds through the rifle and realize that it still needs more time to break in. I would fire 2-3 rounds from a prone position and get them touching. Then I'd fire rounds 4 and 5 and they'd be half an inch or more from the first shots! Then I'd get up from the rifle and bang my head against wall.
After the pain in my forehead subsided, I'd try it again with similar results. Every time I'd get behind the rifle, in the back of my mind, I felt that something was wrong but couldn't figure it out. I had a similar feeling with an AR-15 with an RRA upper in the same caliber about a couple months earlier.
The range was set to close and I decided to pack things up and try again another day. When I took the photos I realized what was probably causing me problems! I had forgot to extend the butt stock on the chassis! My head moves quite a bit forward in the prone position and I needed to extend the butt stock about another 1 1/4 inches. The photos show the buttstock extended. It was shortened for both days of shooting!
I think that I did that with the gas gun with similar results but when shooting it out to 900 yards the results were impressive! I make it a habit to check and recheck everything during my pre-competition ritual and checking the LOP on an adjustable buttstock is something that I don't usually forget, except for when I zeroed the darn thing.
So give me a little encouragement here. Someone please tell me that with my LOP too short in the prone will cause me to have terrible groups. If you won't do that, at least tell me how nice my new rifle looks.