Rem 700 6.5 CM Hitting to the right

[xsn10s]

This is totally fine, its not my rifle HAHA. I was going to utilize the "man bun" suffix but held off since i was actually trying to help resolve a problem haha.

Yeah it can be frustrating getting a scope set up for LR. It's hard telling if it's off level or the tracking is off. In either case I've used the pencil marking method with good results. If turned the wrong way just reverse the turn and try again. A bubble level might be good also. I just did another scope of mine and am hitting true out to 1300 yards with my 308 Win PSS. I'd test farther but I think my loads are becoming unstable at 1350 or so due to my 1-12" twist.

 

[26Reload]

This was one of his concerns, however neither of us knows how to determine if the holes were out of alignment with the centerline of the action. How do you do this?

Should be able to take a small speed square to front and rear edges of receiver and align....should be very obvious if they are not centered....

 

[Hard rock]

This would be a good test, i will suggest it.

It doesn't take much too move the bullet 5 in too the right , any cross wind , will have some effect on the bullet at 500 yds . A breeze will move the bullet 5 in at 500 yds , I don't think you have a problem ,

 

[cohunt]

Rifle cant or reticle not level is my guess

 

[mtbullet1]

also, check bullet rpm, to high and it will "drift" bullet

 

[BPollard]

A colleague has a new Remington 700 in 6.5 CM. He has a picatinny rail with Vortex rings and a Vortex Diamondback scope. He has worked up hand loads and had the gun grouping well and zeroed at 100 yds. He backed up to 500 and still the gun was grouping well but was impacting about 5" to the right of center.

He removed the scope, rings and rail to check if everything was tight and seemingly aligned correctly. He reinstalled the rail and rings, lapped the rings and reinstalled the scope. Took it back out, re-zeroed it at 100, moved back to 500 with the exact same result.

I have never encountered this type of problem and really didn't have a direction to suggest, has anyone experienced this and if so what are the common things a person should be looking for?

What's the barrel twist

 

[BPollard]

What's the barrel twist

Also make sure your Scope is not canted
shoot at 100 yds dialing up your scope and shoot at that same hundred yard target and see if your two groups are plum

 

[Black Tail Hunter]

Should be able to take a small speed square to front and rear edges of receiver and align....should be very obvious if they are not centered....

Ok, so possibly remove the bolt and square off the back of the receiver? That sounds doable. Maybe a quality combo square would be long enough to check both front and rear holes at once.

 

[Black Tail Hunter]

It doesn't take much too move the bullet 5 in too the right , any cross wind , will have some effect on the bullet at 500 yds . A breeze will move the bullet 5 in at 500 yds , I don't think you have a problem ,

I could see this possibility, however the fact that it happened the exact same on 2 different outings is suspicious. I think he has a scope or mount issue.

 

[Black Tail Hunter]

Also make sure your Scope is not canted
shoot at 100 yds dialing up your scope and shoot at that same hundred yard target and see if your two groups are plum

As in, make the 500 yd correction but still shoot at 100 and see if the only change is elevation?

 

[spladi]

A colleague has a new Remington 700 in 6.5 CM. He has a picatinny rail with Vortex rings and a Vortex Diamondback scope. He has worked up hand loads and had the gun grouping well and zeroed at 100 yds. He backed up to 500 and still the gun was grouping well but was impacting about 5" to the right of center.

He removed the scope, rings and rail to check if everything was tight and seemingly aligned correctly. He reinstalled the rail and rings, lapped the rings and reinstalled the scope. Took it back out, re-zeroed it at 100, moved back to 500 with the exact same result.

I have never encountered this type of problem and really didn't have a direction to suggest, has anyone experienced this and if so what are the common things a person should be looking for?

Study up on the (Coriolis effect)

 

[BPollard]

As in, make the 500 yd correction but still shoot at 100 and see if the only change is elevation?

If the Retical is not canted the second group will be higher on the target but it will be plum

 

[Black Tail Hunter]

Study up on the (Coriolis effect)

The flight time of the 6.5 bullet at 500 yards is not likely long enough to be affected by Coriolis.

 

[azarcher10x]

Do a tall target test.