Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Gunsmithing


Reply

New stock problems - how to shrink these groups?

 
LinkBack Thread Tools Display Modes
  #1  
Old 06-15-2012, 07:46 PM
Bronze Member
 
Join Date: May 2008
Posts: 42
New stock problems - how to shrink these groups?

Howdy all,

I'm shooting 140 Hornadys out of a 264 Win Mag Sendero II. With the original bedded HS stock, I was getting 1/2" groups. Trouble is, I've always hated HS palm swells. Two days ago, I changed stocks going to a Bell and Carlson M40. I went from 1/2" groups to about 2" groups! The barrel is still free floating, the lugs are tightened to 30"/lbs, haven't had it bedded. Floorplate opens and closes ok so it's not binding. I need some opinions as to where to start to get the groups back down. Please advise.


Many thanks, in advance, for your help.
Reply With Quote
  #2  
Old 06-15-2012, 10:42 PM
Silver Member
 
Join Date: Jan 2011
Location: Pa.
Posts: 103
Re: New stock problems - how to shrink these groups?

I hope you torqued them in 30in lbs not ft lbs.lol.
I would just re-test loads for it. Different stocks, different pressure points on the action causing it to twist the action. It would change if it were swapped out for the same style HS stock from a different rifle. (IMO)
__________________
A little bit of fire burns alot of wheat.

Hey now, one time i reached down to pet a little dog and it was a 5lbs squirrel - Si Robertson
Reply With Quote
  #3  
Old 06-16-2012, 10:54 AM
Gold Member
 
Join Date: Jan 2008
Location: NW Montana
Posts: 803
Re: New stock problems - how to shrink these groups?

Try 45 inch lbs on both, make sure the recoil lug is seated properly
Reply With Quote
  #4  
Old 06-20-2012, 10:59 PM
asa asa is offline
Bronze Member
 
Join Date: Jul 2006
Posts: 72
Re: New stock problems - how to shrink these groups?

make sure the bolt handle is not contacting the stock.
Reply With Quote
  #5  
Old 06-20-2012, 11:27 PM
Platinum Member
 
Join Date: Apr 2010
Location: Allen, TX
Posts: 2,608
Re: New stock problems - how to shrink these groups?

I'd suggest you do a proper inlet/bedding job, or put it back and see if you can get back to where you started.

I wouldn't even think about load workup until it's bedded.

-- richard
Reply With Quote
  #6  
Old 06-26-2012, 11:13 PM
Junior Member
 
Join Date: Jun 2012
Location: Pagosa Srpings,CO
Posts: 22
Re: New stock problems - how to shrink these groups?

Just saw your post about changing stocks and opening up your groups. I have changed out all the H-S stocks on my senderos to B&C. I started at 50 in/lbs on both bedding screws, and sat down with factory federal premium ammo with 3 shot groups. After each group I'll tighten the front screw 1 in/lb until the groups turn in to one ragged hole. After I get as tight a group as I can, then I can tune my hand load from there. Be sure you write down your final torque settings down for future reference. Hope this helps.

Aim small- hit small
Reply With Quote
  #7  
Old 07-03-2012, 04:46 PM
Silver Member
 
Join Date: May 2010
Posts: 118
Re: New stock problems - how to shrink these groups?

Install your old stock and regroup you shots. Maybe its not the new stock.

Then try all the other things the guys are saying.

Bedding, torque, new load, etc.

Good Luck

KBR
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: New stock problems - how to shrink these groups?
Thread Thread Starter Forum Replies Last Post
7mm groups @ 200 Blaser7 Rifles, Bullets, Barrels and Ballistics 16 04-09-2012 12:15 PM
what do groups mean? bigsal5353 Rifles, Bullets, Barrels and Ballistics 15 03-19-2011 06:49 AM
Problems with 300wsm groups Peterbilt Long Range Hunting & Shooting 17 03-01-2011 07:25 PM
Accue stock problems isu600rr General Discussion 2 10-19-2010 10:37 PM
Groups with new stock fitted. northernchris Long Range Hunting & Shooting 3 02-16-2007 08:11 PM

Current Poll
Do You Shoot Rifle Competition?
YES - 33.69%
764 Votes
NO - 66.31%
1,504 Vote
Total Votes: 2,268
You may not vote on this poll.

All times are GMT -5. The time now is 02:28 PM.


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