arlaunch
Active member
This is my 3rd 308 barrel.
I have spent so much time and money trying to get this rifle to shoot. Some days it turns out good groups, the next time at the rifle range it shoots awful.
I took 204 AR's advice and ground more clearance on the hand-guard last night. It "seems" i have gone to the point where, when you flex the barrel down, it can no longer touch the hand guard.
I have spent hours fussing over the gas tube/BCG alignment. There is some movement on the gas tube to some degree. But not always, and when it touches a bit, it is minor. If you push the BCG home perfectly straight, it will not touch at all.
On the last barrel i had, i swapped scopes to a known good one. I did not see any difference.
I cleaned it prior to firing, and did 9, one shot/one cleans until no copper exists.
The barrel is a breeze to clean.
The gas tube clears the barrel nut w/o touching after i ground on the barrel nut.
I am using a Young Manufacturing chrome carrier, with a JP bolt that was head-spaced to the barrel extension.
I know what i am doing at the reloading bench. My rounds have minimal run out and the brass is bumped back .03-.05
I don't know what to do. I took it out shooting this morning... Poor performance!!!1
I have watched Johny's reloading bench a bit. It seemed he had the big change over in accuracy when he switched from Starline to Lapua.
I switched from Starline to Hornady. Hornady is definitely a step up. It sizes real consistently, and does not need and inch trimmed off after each firing. Groups are better, but obviously not better enough to solve the big picture problem.
It has a Surefire 3 prong flash hider that is not, and never has been put on too tight. Suppressor is on order.
Anybody have any ideas? I am a range trip or two from being done with the big platform. So much money, time and thought into this.
I suppose it is worth noting that a low flier is the culprit to what would have been a good group on many occasions. Not all though.
I have spent so much time and money trying to get this rifle to shoot. Some days it turns out good groups, the next time at the rifle range it shoots awful.
I took 204 AR's advice and ground more clearance on the hand-guard last night. It "seems" i have gone to the point where, when you flex the barrel down, it can no longer touch the hand guard.
I have spent hours fussing over the gas tube/BCG alignment. There is some movement on the gas tube to some degree. But not always, and when it touches a bit, it is minor. If you push the BCG home perfectly straight, it will not touch at all.
On the last barrel i had, i swapped scopes to a known good one. I did not see any difference.
I cleaned it prior to firing, and did 9, one shot/one cleans until no copper exists.
The barrel is a breeze to clean.
The gas tube clears the barrel nut w/o touching after i ground on the barrel nut.
I am using a Young Manufacturing chrome carrier, with a JP bolt that was head-spaced to the barrel extension.
I know what i am doing at the reloading bench. My rounds have minimal run out and the brass is bumped back .03-.05
I don't know what to do. I took it out shooting this morning... Poor performance!!!1
I have watched Johny's reloading bench a bit. It seemed he had the big change over in accuracy when he switched from Starline to Lapua.
I switched from Starline to Hornady. Hornady is definitely a step up. It sizes real consistently, and does not need and inch trimmed off after each firing. Groups are better, but obviously not better enough to solve the big picture problem.
It has a Surefire 3 prong flash hider that is not, and never has been put on too tight. Suppressor is on order.
Anybody have any ideas? I am a range trip or two from being done with the big platform. So much money, time and thought into this.
I suppose it is worth noting that a low flier is the culprit to what would have been a good group on many occasions. Not all though.