Long Range Hunting Online Magazine

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

Rifles, Bullets, Barrels & Ballistics Applied Ballistics


338 Optium Barrel Lenght

LinkBack Thread Tools Display Modes
Unread 07-01-2006, 03:56 AM
Silver Member
Join Date: Jan 2006
Location: Mississippi
Posts: 147
338 Optium Barrel Lenght

I'm planning a 338 RU
M or 338 Edge, a Rem 700 action. I'm not sure which barrel I'm going to use, probly a Lilja since my last two barrels were Rock Creek. Any way which ever barrel, I need some in put on length, I think between 26" and 30" is the range I'm locking at. The only objective data I have seen was on a 338-378WBY that Dan Lilja started with a 46" barrel and cut in 2" increments down to 26". The diffrence in velocities adjusted for temp was suprisingly small. dans findings are below with Velocities adjusted to 73d. (2 fps per degree)

Weight---250 gr -------300 gr

26"------3105fps------ 2928fps

Is it worth going a extra 4" for these modest gains. I'm assuming that the diff per inch for the 338 RUM and the 338 Edge will be close to Dans findings for the 338-378.

Three rules of Life: If you're too open-minded, your brains will fall out. Don't worry about what people think; they don't do it very often. Artificial intelligence is no match for natural stupidity.
Reply With Quote

Unread 07-01-2006, 05:11 AM
Official LRH Sponsor
Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,848
Re: 338 Optium Barrel Lenght

Actually the drop in fps per inch of barrel under 30" will be significantly less then it would be even for the 338-378.

The 338 RUM or 338 Edge are extremely efficent chamberings, as is the 338-378 for its case capacity that is.

It would depend what the rifle would be used for. If you were building a portable big game rifle I would go with 26" max.

If you are building a hunting rifle for fixed location hunting styles then I would say 26 to 28" is what I would recommend.

If you are building a heavy rifle then I would say anything between 26 and 30"

To be honest the difference in velocity potential between 26 adn 30" will not be worth considering in the field in any way. The real determining factor would be the use of the rifle.

The 338 cal magnums are not wedded to really long barrels for top performance, in fact, the 338 Lapua and 338 RUM will do suprisingly well in a 24" class barrel. I think this is getting pretty short but they do better then you would expect.

Good Shooting!!

Kirby Allen(50)
Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

Reply With Quote
Unread 07-02-2006, 03:00 PM
Gold Member
Join Date: Jan 2003
Location: centre,alabama
Posts: 948
Re: 338 Optium Barrel Lenght

Several friends and I have 30" barrel .338/300 that get good velocity.Longer length = more speed probably just a personal preference as to what length...
Reply With Quote


Thread Tools
Display Modes

Similar Threads for: 338 Optium Barrel Lenght
Thread Thread Starter Forum Replies Last Post
.308 barrel lenght? tfosters01 Gunsmithing 13 03-06-2011 01:50 PM
Building 338 Win Mag and Need Barrel Help twist and lenght ecooper1514 Rifles, Bullets, Barrels & Ballistics 7 03-02-2011 06:58 PM
338 edge barrel lenght? timmyatnop Rifles, Bullets, Barrels & Ballistics 13 01-12-2011 12:06 PM
Case Capacity Verses Barrel Lenght? NZVarminter Rifles, Bullets, Barrels & Ballistics 7 03-29-2006 09:25 PM
replacement barrel lenght on a rem 700 action Dr. John Rifles, Bullets, Barrels & Ballistics 4 11-07-2004 08:19 PM

All times are GMT -5. The time now is 04:41 AM.

All content ©2010-2015 Long Range Hunting, LLC