07 January 2010, 22:13
gene so6.5 x 284 barrel length-velocity
Hello;
Utilizing the Quik=load computer program, could somebody help me out with a problem? Noting that Savage has come out with a 6.5 x 284 rifle in 30 inch barrel length meant for F Class shooting got me to thinking.
I am experienced with this caliber at long range both in benchrest and hunting. What valocity gains with a 140 grain bullet can be gained by the longer barrel versus, say a 26 inch? I have contacted Pac-Nor and they tell me they can make a 3 groove barrel up to 33 inches long, in this caliber.
I believe that with the right powders in this case you could get velocities that would make this extra barrel length pay dividends. I would like to have this confirmed by the usage of the Quik-Load program. I would be using this rifle for long range prone usage with a bipod for field use. I am just south of Whittington NRA range and the winds realy blow here, compared to Seattle, where I lived before retirement.
Thank you in advance for any help you may care to give me in this matter.
Gene S.
08 January 2010, 00:32
ramrod340Well in the for what's worth department.
Loadtech calls the gain from 26-30 around 70fps the gain from 30 to 33 was 40fps.
17 January 2010, 05:34
doubledowngene so, I have the Savage model 12 in 6.5-284. I can tell you I get 3150 fps with 139 grain Lapua silver scenar's with a 30" tube.
Quick load calculations with 140 grain bullet:
26 " barrel 2928 fps
28" barrel 2981 fps
30" barrel 3029 fps
33" barrel 3094 fps