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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Optium Barrel Lenght
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<blockquote data-quote="bjlooper" data-source="post: 114248" data-attributes="member: 5547"><p>I'm planning a 338 RU</p><p>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) </p><p> </p><p>Weight---250 gr -------300 gr </p><p> </p><p>30"------3196fps-------2967fps </p><p>28"------3163fps-------2968fps </p><p>26"------3105fps------ 2928fps</p><p>Dif--------91fps---------39fps </p><p></p><p>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.</p><p>Thanks </p><p>DR B</p></blockquote><p></p>
[QUOTE="bjlooper, post: 114248, member: 5547"] 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 30"------3196fps-------2967fps 28"------3163fps-------2968fps 26"------3105fps------ 2928fps Dif--------91fps---------39fps 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. Thanks DR B [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Optium Barrel Lenght
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