Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Hunting > Long Range Hunting & Shooting

Long Range Hunting & Shooting Nightforce Optics


Reply

Sign Rifle Needs Bedding

 
LinkBack Thread Tools Display Modes
  #1  
Old 02-02-2011, 10:29 PM
Bronze Member
 
Join Date: Jan 2011
Posts: 56
Sign Rifle Needs Bedding

I was wondering what signs are of a rifle needing bedding? I am getting inconsistent performance from my rifle after each barrel cleaning (have to re-zero).

I have a remington sendero 7mm Mag. Shot great until recently. Also, how many rounds should the barrel take before it needs to be replaced?

Thank you.
Reply With Quote
  #2  
Old 02-02-2011, 11:21 PM
Silver Member
 
Join Date: Dec 2007
Location: sebastopol, ca.
Posts: 418
Re: Sign Rifle Needs Bedding

Sounds like something is loose in the scope mounting or scope.
Does the zero hold after you rezero it?
What kind of loads are you shooting?
Are the loads using the same lots of components as before?
Reply With Quote
  #3  
Old 02-03-2011, 06:12 AM
Silver Member
 
Join Date: Jun 2008
Location: Texas
Posts: 347
Re: Sign Rifle Needs Bedding

I agree with above.Check your action screws,take your scope completely off,check your bases,remount your scope and see if anything changes.When you sight your rifle back in,if adjustment don't go the way you move it,it could be a problem with your scope too.Give your barrel a good cleaning,shoot some ammo that you know shoots well in your rifle and see if any of that helps.I do bed the recoil lug on my Senderos.That aluminum bedding block does a good job at supporting the bottom of the action,but the inletting for the recoil lug can be a little sloppy for my liking.I would consider bedding the lug,it sure won't hurt.
Reply With Quote
  #4  
Old 02-03-2011, 06:19 AM
Platinum Member
 
Join Date: Dec 2008
Location: Great Falls, MT
Posts: 4,538
Re: Sign Rifle Needs Bedding

Quote:
Originally Posted by luke5678 View Post
I have a remington sendero 7mm Mag. Shot great until recently. Also, how many rounds should the barrel take before it needs to be replaced?
Try Excel Formula Predicts Useful Barrel Life within AccurateShooter.com
__________________

I voted for my "FREEDOM", "GUNS", and "MONEY" - keep the change - UNK.



"I am always proud of my country!"

"Leadership Rule #2: Don't be an @zzhole." - Maj Gen Burton Field.
Reply With Quote
  #5  
Old 02-03-2011, 06:54 AM
Platinum Member
 
Join Date: Dec 2001
Location: Winterville, NC
Posts: 1,491
Re: Sign Rifle Needs Bedding

"I am getting inconsistent performance from my rifle after each barrel cleaning (have to re-zero)."

This statement makes me suspicious that what you are seeing is normal "point of impact" (POI) movement of the bullet after cleanging. If there is oil or solvent residue left in the barrel, and there invariably always is, this will cause the first shot (or more) to fly off course. If the rifle is solid (i.e., action screws tight, barrel not touching, consistent trigger) then it should settle down and return to it original zero (or POI) after the barrel is slightly fouled. My rifles usually like at least one fouling shot and then they're back in their groove(s).
I may be way off base. You are using the same ammo each time, correct? Do you give the rifle time to "settle" down after cleaning the barrel? JohnnyK.
Reply With Quote
  #6  
Old 02-03-2011, 10:51 AM
Bronze Member
 
Join Date: Jan 2011
Posts: 56
Re: Sign Rifle Needs Bedding

Yes, once I rezero it does hold until I clean the barrel. Then my zero changes (within an inch or so) and I have to adjust nightforce scope and then I can put the next 20 in 1/2 inch group.

Then the cycle starts over again. I clean the barrel. Shot 3 fouling shots, then I put the next 20 in a different place then before.

That is what makes me think it's not the scope or mounts because the only thing changing is cleaning my barrel.

The rifle used to not do this, a recent change. The only thing that changed was that I started de-burring my flash holes this last time and it shot 1.25 inch higher than before. I don't see how that can make much of a difference. I shoot handloads (60.5 g. of IMR4350, 3.345OAL, CCI Mag primer, nosler brass, 160 accubonds). All sorted and weighed. This load is proven over the past year in the gun for 1/2 inch at 100.

I have about 400 shots through the gun so I don't see how I could have shot it out. I recently had a gunsmith go through the gun too and he didn't see anything too wrong with it. He said it's not straight (action-barrel) but said that is normal for a remington.

Any help is appreciated.

Thanks
Reply With Quote
  #7  
Old 02-03-2011, 12:40 PM
Gold Member
 
Join Date: Nov 2009
Posts: 798
Re: Sign Rifle Needs Bedding

I would likely test the security of the scope before doing anything. Shoot 4-5 rounds then hit your scope with the heel of your hand & see is zero shifts.

Assuming your action screws are torqued properly, my next thought would go to lapping your lugs. When you clean the gun you remove the bolt. If it's not stable you could see minor differences in p.o.i. especially with the action out of line with the bore. I would suggest having the action trued, lugs lapped & recoil lug bedded.

Scopes do go bad & mounts do work lose, not often with quality parts, but it does happen. I second the suggestion you remove the scope & mount, then reinstall each.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Sign Rifle Needs Bedding
Thread Thread Starter Forum Replies Last Post
Bedding A Rifle By Pat Sheehy ADMIN Technical Articles - Discussion 24 09-07-2012 06:52 PM
glass bedding a rifle hatfield954 Gunsmithing 7 08-19-2011 04:13 PM
Pillar bedding a rifle???? SouthwestPA Rifles, Bullets, Barrels and Ballistics 3 12-29-2004 02:51 PM
Pillar bedding a rifle???? SouthwestPA The Basics, Starting Out 0 12-29-2004 08:27 AM
Rifle Bedding Rifles, Bullets, Barrels and Ballistics 7 02-11-2004 02:29 PM

Current Poll
How Many Different Cartridges Do You Reload For?
ZERO, all factory ammo - 8.06%
360 Votes
1 - 2.77%
124 Votes
2 or 3 - 14.59%
652 Votes
4 or 5 - 20.41%
912 Votes
6 or 7 - 14.86%
664 Votes
8 or 9 - 8.64%
386 Votes
10 or more - 30.68%
1,371 Vote
Total Votes: 4,469
You may not vote on this poll.

All times are GMT -5. The time now is 01:58 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC