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Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by midwesthunter, Jan 8, 2012.
I have a buddy looking at one, was wondering what velocity is lost shootinfg a 26" barrel vs a 30"
Most likely between 100-150'/sec depending some other factors.
Lilja Precision Rifle Barrels - Articles: Barrel Lenghts and Velocities in the 338/378 Weatherby Magnum
I have two in 26" barrels now that shoot pretty close to the same numbers as 30" barrels. Just depends on where your accuracy hits. You could easily get a 26" that shoots faster than a 30" when best accuracy is considered. But if you compared a fast 30 and a slow 26 then there would be quite a bit of difference. Back in the 90's I did quite a bit of testing developing variations of the 338 Lapua and 338-300 RUM's with different barrel lengths. 15-20 fps on average per inch of barrel is what I found with most rifles chambered in these two cartridges. That is why most of mine are in 26" and 28" barrels. I am a hunter so no need carrying the extra weight since an animal will never know the difference. The velocities I shoot in both my 26" barrels are virtually the same as the ones I see posted on here for guys with 30" barrels. I wouldn't let the velocity effect my decision.