Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels and Ballistics


Reply

338 Lapua Headspace Problem?

 
LinkBack Thread Tools Display Modes
  #8  
Old 11-25-2009, 10:40 PM
Silver Member
 
Join Date: Aug 2008
Location: Arvada, Colorado
Posts: 368
Re: 338 Lapua Headspace Problem?

Thanks Jim,

I will give this a try and see how it works.

By the way, I did read the thread Shawn Carlock wrote about Hodgen powders. I plan on doing some more testing to see how this might be affecting me.

Ray
Reply With Quote
  #9  
Old 11-28-2009, 09:41 PM
Silver Member
 
Join Date: Jul 2009
Location: Sydney,Australia
Posts: 321
Re: 338 Lapua Headspace Problem?

Hi guy's yesterday i picked up my first custom rifle same as the original post tac 338 action but i went a 27" lilja barrel,i started prepping some brass and loading some rounds but i have found the bolt is hard to close it feels like the extractor is having a hard time clipping over the rim of the case and chewing the rim of the case,have any of you guys come across the same thing or could u suggest what it might be.
Reply With Quote
  #10  
Old 11-29-2009, 01:21 AM
Silver Member
 
Join Date: Jan 2008
Posts: 414
Re: 338 Lapua Headspace Problem?

SHRT, You may have other problems; however, I would put my money on an overly slick chamber. I have had a couple of customs that displayed the symtoms that you describe. As it turned out they simply had chambers that were polished so well that the cases could not grip the chamber walls during the pressure cycle. This allowed the bolt face to absorb the brunt of the rearward forces causing brass to flow into the ejector slots. This can occur with mild loads in highly polished chambers.
Reply With Quote
  #11  
Old 11-29-2009, 12:46 PM
Silver Member
 
Join Date: Aug 2008
Location: Arvada, Colorado
Posts: 368
Re: 338 Lapua Headspace Problem?

300R,

I am certainly no expert, learning myself. I would take a hard look at the boltface. My TAC 388 uses a PT&G bolt. Most of my problems stemmed from burrs on the ejector hole and also from burrs under the extractor. When I removed the extractor from the bolt, I noticed a pretty good sized burr sticking up towards the boltface.

I had assumed a custom action would have been accurized. I assumed incorrectly! Nathan dagley did a Phoenix action for a different rifle for me. I hear he sometimes recuts the boltfaces on the PT&G bolts along with other things to get a precision action. Nathan knows these actions inside and out.
Reply With Quote
  #12  
Old 11-29-2009, 01:15 PM
Silver Member
 
Join Date: Aug 2008
Location: Arvada, Colorado
Posts: 368
Re: 338 Lapua Headspace Problem?

Augustus,

Thanks for the heads up. A polished chamber may have contributed to what I was seeing.

I cleaned up the burrs on the boltface and I do not have any marks on my cases. Easy bolt lift as well. I shot yesterday and after a couple hundred rounds, my velocity increased from 2725average to 2745 average.

Still have excessive headspace but if I control my reloading process, it should be fine.
Reply With Quote
  #13  
Old 11-29-2009, 10:36 PM
Silver Member
 
Join Date: Jul 2009
Location: Sydney,Australia
Posts: 321
Re: 338 Lapua Headspace Problem?

Thanks shrtshtr i will have to pull it apart,like you said the finish wasn't what i expected either,it does look rough around the extractor and ejector on mine too.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: 338 Lapua Headspace Problem?
Thread Thread Starter Forum Replies Last Post
problem 338 Lapua, gun or scope Thekid76 Long Range Hunting & Shooting 7 02-25-2010 09:38 PM
Headspace problem? lineman69 Rifles, Bullets, Barrels and Ballistics 4 09-20-2009 05:56 PM
.223 Headspace problem? tlshootst Reloading 16 07-23-2009 09:41 PM
Generous headspace/trim length....any problem with this?? kraky2 Rifles, Bullets, Barrels and Ballistics 3 03-23-2006 12:14 PM
Lapua Brass - 300 Win Mag Headspace Anomalies? jguill Reloading 6 09-29-2005 07:19 AM

Current Poll
Do you archery hunt for elk?
YES - 31.35%
58 Votes
NO - 52.97%
98 Votes
Not yet, but I plan to. - 15.68%
29 Votes
Total Votes: 185
You may not vote on this poll.

All times are GMT -5. The time now is 05:27 PM.


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