Gun riddle...

[eww1350]

New Savage Tactical rifle 6.5 Creedmore (less than 10 rounds thru it) Nightforce pic rail, Nighforce rings, Nightforce 12-42 scope..boresight..shoots 1 foot left at 25 yards with the windage adjusted as far as it will go...shoots about 4+ feet left at 100 yards...changed scopes March 8-80 with LaRue QD mounts same results..view target thru bore (rifle in cradle) scope centered on bull..shoots 4+ feet left at 100 yds..ammo Hornady factory 140 grain A-Max..checked out all screws, bedding, crown is square with barrel, no damage all looks new.. ??? ???
Going back to retail store on Monday for return to Savage...

 

[uncleduke]

Good chance the scope mount holes weren't drilled in line correctly.

 

[BigDMT]

Hmmm. If you have the target centered on the bore, do you have to use max windage to center it on the scope reticle?

If so then it might be crooked base holes as uncleduke stated. The other possibility is you have a crooked barrel.

Could be your rings or base as well. Even the most expensive products can let some lemons out the door from time to time. But if i had to place a bet on who was at fault, my money would go on Savage long before it went on NightForce.

 

[wwbrown]

Good chance the scope mount holes weren't drilled in line correctly.

+1

 

[eww1350]

Scope was not maxed out when boresighting...that is the weird part..only when trying to get bullet impact on target was the scope maxed out..

 

[BigDMT]

A crooked barrel can be caused by a few things;
1: The barrel is simply bent.
2: The receiver face or threads are not square with the action causing the barrel to lean one way or the other. 3: A recoil lug that is a lot thicker on one side. In the case of a Savage, a bad barrrel nut might effect this as well.

 

[eww1350]

Before you apply simple logic..think about this...a scope is mounted above the bore..and when boresighted you are setting the barrel and scope to converge at a known distance..so if the scope is centered on the bull and looking thru the barrel you see that it is well centered on the bull then the bullet strike should meet where the two images converge...

 

[eww1350]

I agree there could be a crooked "something" but the barrel sat right in the middle of the stock barrel channel and the stock wasn't inletted to fit the barrrel..it is made independently of the barreled action and they are mated later in the manufacturing process..

 

[BigDMT]

Before you apply simple logic..think about this...a scope is mounted above the bore..and when boresighted you are setting the barrel and scope to converge at a known distance..so if the scope is centered on the bull and looking thru the barrel you see that it is well centered on the bull then the bullet strike should meet where the two images converge...

Its just a starting point, but should at least get you on paper at 100 yards. Not 4ft left.


Did you verify that the reticle is actually moving on target when making adjustments? Grossly out of spec rings and bases can cause scope adjustments to lock up.

 

[BigDMT]

I agree there could be a crooked "something" but the barrel sat right in the middle of the stock barrel channel and the stock wasn't inletted to fit the barrrel..it is made independently of the barreled action and they are mated later in the manufacturing process..

Just because the contour of the barrel appears to be straight does not mean that the bore was drilled straight. And you may not be able to see it with the naked eye.

 

[fdshuster]

"Going back to retail store Monday for a return to Savage", is your best choice. Not the first time I've heard of scope base mount screw holes having been drilled out of alignment. 4' + to the left at 100 yards is radical.

 

[LHSmith]

I recall in a Precision Shooting Mag had a 2-part series on rifle crowns....the writer purposely damaged crowns, and cut some crowns that were ~ 5 degrees out of perpendicular to the bore (the barrel end was canted to one side. IIRC the group printed to the side the end of the barrel pointed...and it was off substantially....but it actually still grouped well. Is there more fouling on one side of the crown than the other?

 

[Grimstod]

Good chance the scope mount holes weren't drilled in line correctly.

1+

 

[Ggmac]

I agree with above . 1- scope mt screws not drilled properly 2- bent barrel or receiver face , recoil lug not square .or have you checked to make sure the barrel nut is tight ?

 

[BigDMT]

I recall in a Precision Shooting Mag had a 2-part series on rifle crowns....the writer purposely damaged crowns, and cut some crowns that were ~ 5 degrees out of perpendicular to the bore (the barrel end was canted to one side. IIRC the group printed to the side the end of the barrel pointed...and it was off substantially....but it actually still grouped well. Is there more fouling on one side of the crown than the other?

Good point on the crown.

 

[BigDMT]

I suppose no matter what the cause is, its Savage Arms problem. Would be interested to know what their conclusion is after you send it back. Whether it is something as simple as crooked mounting holes or something more like a barrel or action issue. Good luck.

 

[eww1350]

Absolutly..it belongs to a good friend..he is returning it Monday...I too am waiting to see if Savage will send a response as to what the problem was, or just stay silent to avoid any further bad press..it is not human nature to admit ones mistakes.. ;D

 

[butchlambert]

Maybe he can't shoot.

 

[BigDMT]

Maybe he can't shoot.

LOL. Thats usually my problem ;D

 

[eww1350]

He brought it to me after trying to get it on paper...I switched scopes and checked everything out...but I've been known to miss an "X" every now and then.. ;D