Just received my new McGowen match barrel in 6.5 Creedmoor. This will end up doing dual duty as a hunting and PRS type set up. Scope is the Sightron STAC 3-16 LRMOA.
Love this chamber.. cause it is so easy to tune.
Took the rifle out this morning and shot the groups circled. Each letter has a step difference of 0.2gr... B was the load that shot well in my other McGowen match prefit barrel. This barrel showed a desire to go higher in load amount.
The non circled groups were shot this afternoon.
I focused on load "D" and increasing the load 0.1 and 0.2gr... all shot at 200yds with pretty calm winds.. light and gusty but nothing too severe.
Except for 6 sighters and 2 foulers, all the shots run down the barrel so far are on this 1 target. I cleaned the barrel very well before shooting to get rid of the rust preventative and oils. I cleaned again after the first 19rds with no signs of copper.
I typically use Hrn 140gr BTHP cause it shoots quite well and uses similar load to my Bergers. Less money and makes for a great practise bullet. Unfortunately, you can see how there is some dispersion in the group but it matches the 1/2 MOA accuracy Hrn "shoots" for.
Made up some ammo using D and D + 0.1gr with the Berger 140gr VLD... At 200yds, I am very happy with how it shot.... and with a Harris too. And in case you care, the 2X3rds were shot back to back without stopping.
For those who remember this rifle, I am using a 2nd action but it bolts perfectly into the bedding of the other barreled action (that barrel is fluted). That is how well these receivers are made. I would likely not be able to do this with a Rem 700 of recent production.
Some will dismiss the 783 because of its very low purchase price. They would be missing out on the sleeper action of the decade.
And, the extraction and ejection of both my receivers, and the other 5 I have personally shot, has worked just fine.
Jerry
