I’ve got 400 rounds through my Proof carbon prefit 6.5x47L barrel now and it is really impressing me. It’s even slightly more precise and consistent than my Gradous barrel I replaced for it.
As long as I don’t make a mistake, it very consistently prints 5 shot groups in the .3” range, and doesn’t really change when it gets hot. I’ve noticed that the first shot after installing the barrel will be low, which can be seen in the group above. It isn’t cold bore, it only happens for the first shot after the barrel is replaced. This, and it grouping about 1 to 1.2 mil lower than the 3 steel barrels in 2 different calibers I’ve shot before in the AI are the two big differences I’ve noticed with the carbon barrel that I haven’t seen with steel barrels. If you’re interested in the Proof carbon prefit and are wondering about how it performs, I’d highly recommend it based on my experience with this barrel, as well as a carbon prefit AR15 barrel I’ve been using for a while as well.
As long as I don’t make a mistake, it very consistently prints 5 shot groups in the .3” range, and doesn’t really change when it gets hot. I’ve noticed that the first shot after installing the barrel will be low, which can be seen in the group above. It isn’t cold bore, it only happens for the first shot after the barrel is replaced. This, and it grouping about 1 to 1.2 mil lower than the 3 steel barrels in 2 different calibers I’ve shot before in the AI are the two big differences I’ve noticed with the carbon barrel that I haven’t seen with steel barrels. If you’re interested in the Proof carbon prefit and are wondering about how it performs, I’d highly recommend it based on my experience with this barrel, as well as a carbon prefit AR15 barrel I’ve been using for a while as well.