Long Range Hunting Online Magazine


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


Reply

Barrel length on rifle build

 
LinkBack Thread Tools Display Modes
  #1  
Old 04-21-2010, 05:44 PM
Junior Member
 
Join Date: Apr 2010
Location: South Dakota
Posts: 16
Barrel length on rifle build

Hello all, I'm new here and I am hoping to learn as much as I can from all of you. I recently brought my old deer rifle in to be fitted with a new barrel and stock. It is a left hand Rem 788 (I know, I know...Dad bought it for me as my first deer rifle, sentimental value) in 6mm with a 20" tube. I am having a McMillan stock put on it and a Lilja barrel .264 1:8 3 groove #5 contour. It will be a .260 Rem (I had to go with one of the .308 family for magazines, and I am intrigued by the .260). I am agonizing a little about whether to put a 24" or 26" tube on it (gunsmith is saying put a 26" on it). I will be using it in South Dakota and Montana for deer and perhaps antelope and shots here can be long. I want to shoot 140's out of it and I am hoping I can achieve what the load data indicates with the same length barrel, around 2800 fps. I know its only 2" but I am looking for guidence for why I should or should not. Note I do want a 24" and no shorter, with a #5 contour I am not looking for a mountain rifle. Thanks for opinions, evidence, experiences in advance.
Reply With Quote
  #2  
Old 04-21-2010, 06:30 PM
Platinum Member
 
Join Date: Dec 2008
Location: Northern Id.
Posts: 3,312
Re: Barrel length on rifle build

Quote:
Originally Posted by Briancrn113 View Post
Hello all, I'm new here and I am hoping to learn as much as I can from all of you. I recently brought my old deer rifle in to be fitted with a new barrel and stock. It is a left hand Rem 788 (I know, I know...Dad bought it for me as my first deer rifle, sentimental value) in 6mm with a 20" tube. I am having a McMillan stock put on it and a Lilja barrel .264 1:8 3 groove #5 contour. It will be a .260 Rem (I had to go with one of the .308 family for magazines, and I am intrigued by the .260). I am agonizing a little about whether to put a 24" or 26" tube on it (gunsmith is saying put a 26" on it). I will be using it in South Dakota and Montana for deer and perhaps antelope and shots here can be long. I want to shoot 140's out of it and I am hoping I can achieve what the load data indicates with the same length barrel, around 2800 fps. I know its only 2" but I am looking for guidence for why I should or should not. Note I do want a 24" and no shorter, with a #5 contour I am not looking for a mountain rifle. Thanks for opinions, evidence, experiences in advance.
Go with the 26"! It will give you about 75-80 fps more velocity over a 24". All my carry rifles have at least 26's and are no problem......Rich
Reply With Quote
  #3  
Old 04-21-2010, 06:32 PM
Gold Member
 
Join Date: Oct 2009
Location: Arizona
Posts: 783
Re: Barrel length on rifle build

26", especially if your smith recommends it. Sounds like a fun build, keep us posted!
__________________
Austin
Reply With Quote
  #4  
Old 04-22-2010, 08:31 AM
Junior Member
 
Join Date: Apr 2010
Location: South Dakota
Posts: 16
Re: Barrel length on rifle build

Thanks for the replies gentlemen, I will go with the 26. Never had a rifle with that long of a barrel, I also didn't think I'd see that much velocity gain in 2" but 70-80 fps is fairly significant. I'll post pics when it is done. My understanding is the barrels are about 12 weeks out...will give me time to buy dies, brass and bullets.
Reply With Quote
  #5  
Old 04-22-2010, 08:33 AM
Silver Member
 
Join Date: Apr 2009
Location: western Oregon
Posts: 120
Re: Barrel length on rifle build

At a #5 contour you will have no trouble with 26". Especially if you don't mind the weight. It's only the lightweight, pencil thin barrels that benefit from shorter lengths.
I wouldn't get too hung up on the 140gr bullets though. If deer and antelope are the intended game, 130s will do just fine, and 120s also for that matter. The lower bullet weights will allow you to jack up the velocity to over 3kfps and flatten out their trajectory some over the 140s. The new Hornady A-Max 123gr w/.510BC or some of Berger or Lapua's offerings should be great when the critters are way out there.

Good luck and keep us posted!
Reply With Quote
  #6  
Old 04-22-2010, 10:08 AM
Junior Member
 
Join Date: Apr 2010
Location: South Dakota
Posts: 16
Re: Barrel length on rifle build

Thanks Jamie6.5, with the pencil thin barrels...is that because of barrel whip? I'm not necessarily set on 140's it just seems that the load data I'm seeing doesn't indicate a big difference between the 130's and 140's. Nosler #6 (which seems to not be conservative) says near or just over 2900 fps with a 24" tube. Plus I've always kind of like the heavier end of bullets for each respective caliber. Of course I'll have to let my rifle and results speak to me. If the lighter bullets shoot better that will be what I'll shoot. I am very curious to see what kind of accuracy I'll get with the Lilja barrel. With my skinny factory 20" 6mm tube I could shoot 7/8" groups (3-shot) all day long and I think that was about what the rifle could do, maybe 5/8" in the hands of a better rifleman. For many that is nothing great but for a factory sporter with no trigger work or any other accurizing work it seemed to be good to me.
Reply With Quote
  #7  
Old 04-22-2010, 03:03 PM
Silver Member
 
Join Date: Apr 2009
Location: western Oregon
Posts: 120
Re: Barrel length on rifle build

I had a 6mmRem in a 788 that would shoot a single hole pretty consistently at 100. I regret selling that rifle to this day. Great round the 6mm.
Yes it's barrel whip I'd be concerned about at 26" in a "pencil" barrel.

I am sure Lilja will confirm that more rigid is "mo-better."

Good idea letting the rifle/barrel tell you what it likes. Too many people end up disappointed when they're dead set on a particular load/bullet combination beforehand.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Barrel length on rifle build
Thread Thread Starter Forum Replies Last Post
Barrel length on new build? MSLRHunter Rifles, Bullets, Barrels and Ballistics 4 12-07-2009 12:26 AM
what barrel length and contour for a 300win mag long range rifle nathank Rifles, Bullets, Barrels and Ballistics 2 01-30-2009 07:51 AM
338 Lapua Build - Barrel length Kalashnikov Rifles, Bullets, Barrels and Ballistics 7 10-29-2008 11:26 PM
Optimum Barrel length for .223 varmit rifle Imortal Wombat The Basics, Starting Out 18 03-26-2005 12:48 PM
Barrel length issue - Rifle Shooter Mag No Fear in Accuracy Rifles, Bullets, Barrels and Ballistics 2 10-24-2003 10:40 PM

Current Poll
Are you on Facebook?
Yes - 46.62%
1,091 Vote
No - 19.19%
449 Votes
No, but I may join - 1.75%
41 Votes
No way, are you kidding? - 36.15%
846 Votes
Total Votes: 2,340
You may not vote on this poll.

All times are GMT -5. The time now is 05:13 PM.


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