Long Range Hunting Online Magazine


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

Long Range Hunting & Shooting Nightforce Optics


Reply

To go Improved or not on 338 Lapua

 
LinkBack Thread Tools Display Modes
  #22  
Old 01-24-2012, 10:44 AM
Platinum Member
 
Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 7,760
Re: To go Improved or not on 338 Lapua

Quote:
Originally Posted by Bravo 4 View Post
I do find this interesting. I'm sure that the annealing and minimal sizing help extend the life, but as far as I know would have nothing to do with the primer pockets remaining tight. That brass must be some good stuff. Especially since your load seems pretty standard to what others use (close to max) and around what other Edge users get with same performance.
Correct, the annealing has nothing to do with primer pockets. But with all of the 338's I have been around (338-378, 338 RUM and 338 Edges) the primer pockets failed long before the necks. So this is why I included that the pockets were still tight and consistant after 14 firings. I have tossed a lot of brass after just 2 or 3 firings from loose pockets. But this is not the case with 338 Lapua brass.

Jeff
__________________

Last edited by Broz; 01-24-2012 at 12:17 PM.
Reply With Quote
  #23  
Old 01-24-2012, 12:34 PM
Platinum Member
 
Join Date: Nov 2005
Location: Texas
Posts: 1,844
Re: To go Improved or not on 338 Lapua

I have several of the AI's and love them. I also have a dedicated fire form tube.
__________________
The Truth Is Not Always Good For Business!!
Reply With Quote
  #24  
Old 01-25-2012, 10:28 PM
Platinum Member
 
Join Date: Jul 2007
Location: Arkansas (Home of Record)
Posts: 1,238
Re: To go Improved or not on 338 Lapua

Well now you guys have me scheming, I might have an optortunity to purchase a 700 police in .338 Lapua at a GREAT price. Wonder if I could get it rechambered for an AI or .338 AX? I have the Edge and get solid 1/4 MOA groups at 100 with 300SMK. And love it at LR, but keep wanting more power. A .338 AM is my dream rifle, but that doesn't seem feasible. Maybe if this contractor job pans out, but I'm not holding my breath on that!
__________________
Courage is just fear that has said it's prayers.

The people trying to say the 2nd Amendment is outdated are probably the same folks that would say the same thing about the Bible.
Reply With Quote
  #25  
Old 01-26-2012, 02:59 AM
Bronze Member
 
Join Date: Oct 2010
Location: Norway
Posts: 69
Re: To go Improved or not on 338 Lapua

I bought myself a Rem 700 Police in 338 Lapua last year. Removed the original barrel, and inserted a LW barrel, 32" long and 1.1" thick.

I must be real lucky, cause with 92 grs of Vith N570 powder behind a 300 grs Berger, I push it out at 2980 fps. And that is not a max load. My cases has been fired 10 times now, and some of them has actually separated. But I suspect that those are the cases I used for testing Norma MRP powder, and pressure built up a bit then.

So it seems, that I get the same velocity with my standard 338 Lapua, as some would get with the Imp version? Or??

I love this caliber, it makes longrange shooting easy, compared to my 300 win mag, and I have been playing at 1640 yards with it, but plan on going further during this spring.
Reply With Quote
  #26  
Old 01-26-2012, 01:54 PM
Silver Member
 
Join Date: Jul 2010
Posts: 420
Re: To go Improved or not on 338 Lapua

OK now I am curious. I have never seen 300gr. anything fly out the barrel of a standard 338 LM at 2980 fps. The 32" Barrel length does not add up to that for me either 250's yes, 300's no
Reply With Quote
  #27  
Old 01-26-2012, 01:57 PM
Platinum Member
 
Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 7,760
Re: To go Improved or not on 338 Lapua

Quote:
Originally Posted by ken snyder View Post
OK now I am curious. I have never seen 300gr. anything fly out the barrel of a standard 338 LM at 2980 fps. The 32" Barrel length does not add up to that for me either 250's yes, 300's no

That is my experience too, even with a 30" tube and a hot load 2850 would be average. Unless this is at very high altitude or the chrongraph is fibbing a bit.

Jeff
__________________
Reply With Quote
  #28  
Old 01-26-2012, 02:46 PM
Platinum Member
 
Join Date: Jul 2007
Location: Arkansas (Home of Record)
Posts: 1,238
Re: To go Improved or not on 338 Lapua

Quote:
Originally Posted by Broz View Post
But with all of the 338's I have been around (338-378, 338 RUM and 338 Edges) the primer pockets failed long before the necks. I have tossed a lot of brass after just 2 or 3 firings from loose pockets.
Jeff
Isn't there a tool out there that corrects loose primer pockets? If you had this and annealed would it be worth the effort?

Quote:
Originally Posted by Yrcan View Post
I bought myself a Rem 700 Police in 338 Lapua last year. Removed the original barrel, and inserted a LW barrel, 32" long and 1.1" thick.

I must be real lucky, cause with 92 grs of Vith N570 powder behind a 300 grs Berger, I push it out at 2980 fps. And that is not a max load. My cases has been fired 10 times now, and some of them has actually separated. But I suspect that those are the cases I used for testing Norma MRP powder, and pressure built up a bit then.
Quote:
Originally Posted by ken snyder View Post
OK now I am curious. I have never seen 300gr. anything fly out the barrel of a standard 338 LM at 2980 fps. The 32" Barrel length does not add up to that for me either 250's yes, 300's no
Quote:
Originally Posted by Broz View Post
That is my experience too, even with a 30" tube and a hot load 2850 would be average. Unless this is at very high altitude or the chrongraph is fibbing a bit.
Jeff

Just asking, has anybody used this powder/bullet combo? I don't know anybody that has. From what I can tell the Lapua and Edge run about neck to neck with the same loads. With a max load of R25 under a 300 SMK I can get darn near that with a 300SMK. The ES is higher then what I would consider acceptable and accuracy 1 moa plus, so I stick with my 90gr H1000 load.
If you tell me this powder shouldn't normaly get these velocities without over pressure then I'll take it as that.
__________________
Courage is just fear that has said it's prayers.

The people trying to say the 2nd Amendment is outdated are probably the same folks that would say the same thing about the Bible.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: To go Improved or not on 338 Lapua
Thread Thread Starter Forum Replies Last Post
338 Lapua/338 Lapua Improved/338 Lapua Ackley Improved C.O. Shooter Rifles, Bullets, Barrels and Ballistics 17 02-10-2014 07:18 PM
.338 lapua ai/improved tbrown9124 Rifles, Bullets, Barrels and Ballistics 5 03-04-2011 08:25 PM
.338 lapua improved or 338-378 wby improved 300spanker Rifles, Bullets, Barrels and Ballistics 3 11-24-2010 09:42 AM
338 Lapua Improved Tyler Kemp Gun Photos 12 01-24-2010 06:21 PM
250 grn in lapua improved 7mmrowland Reloading 2 09-12-2009 09:12 AM

Current Poll
How Many Different Cartridges Do You Reload For?
ZERO, all factory ammo - 8.06%
358 Votes
1 - 2.79%
124 Votes
2 or 3 - 14.61%
649 Votes
4 or 5 - 20.46%
909 Votes
6 or 7 - 14.77%
656 Votes
8 or 9 - 8.60%
382 Votes
10 or more - 30.71%
1,364 Vote
Total Votes: 4,442
You may not vote on this poll.

All times are GMT -5. The time now is 04:40 PM.


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