I am curious how far I should jump Berger VLD bullets. I am shooting a 6.5-284 Norma with 140 bergers. Distance to the lands is 3.259. Berger suggests a COAL of 3.228. I am nervous about letting the bullet touch the lands because there is so little contact with the case neck.
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Re: Berger VLD jump to the lands?
With one of my rifles i'm jumping .140 to the lands with 168 VLD's and thats what it likes. A couple of my other rifles like to be jammed, another one likes to be .050 off lands. Point being, all you can do is try different depths and see what it likes as each rifle is different.
With one of my rifles i'm jumping .140 to the lands with 168 VLD's and thats what it likes. A couple of my other rifles like to be jammed, another one likes to be .050 off lands. Point being, all you can do is try different depths and see what it likes as each rifle is different.
Re: Berger VLD jump to the lands?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Down South</div><div class="ubbcode-body">With one of my rifles i'm jumping .140 to the lands with 168 VLD's and thats what it likes. A couple of my other rifles like to be jammed, another one likes to be .050 off lands. Point being, all you can do is try different depths and see what it likes as each rifle is different. </div></div>
Yep, although Berger states that true secant VLDs like to be jammed, they also qualify that as you do, so one just needs to experiment and see what they see.
Chris
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Down South</div><div class="ubbcode-body">With one of my rifles i'm jumping .140 to the lands with 168 VLD's and thats what it likes. A couple of my other rifles like to be jammed, another one likes to be .050 off lands. Point being, all you can do is try different depths and see what it likes as each rifle is different. </div></div>
Yep, although Berger states that true secant VLDs like to be jammed, they also qualify that as you do, so one just needs to experiment and see what they see.
Chris
Re: Berger VLD jump to the lands?
In my 260 the 130 VLD shoots best with a .035" jump, groups are only slightly larger at .090" jump, and at that length they're magzine loadable so that's what I use.
In my 260 the 130 VLD shoots best with a .035" jump, groups are only slightly larger at .090" jump, and at that length they're magzine loadable so that's what I use.
Re: Berger VLD jump to the lands?
My 6.5x47 either likes a 20k jam or a 120k jump with the 130 VLDs! One hole at. 100 yds
My 6.5x47 either likes a 20k jam or a 120k jump with the 130 VLDs! One hole at. 100 yds
Re: Berger VLD jump to the lands?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Carrbque</div><div class="ubbcode-body">Im working on a load for a 300WM myself. So far the 210's hate everything from .10 in the lands to .30 out of the lands. </div></div>
What powder you using?? R22 although not temp stable is getting me sub moa out to 1200 yards with 210 vld. Mine like em .005" from lands
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Carrbque</div><div class="ubbcode-body">Im working on a load for a 300WM myself. So far the 210's hate everything from .10 in the lands to .30 out of the lands. </div></div>
What powder you using?? R22 although not temp stable is getting me sub moa out to 1200 yards with 210 vld. Mine like em .005" from lands
Re: Berger VLD jump to the lands?
In my 260 I got the best results with the 140 vld just kissing the lands. 2.904 - 2.907 oal depending on the condition of the bullet tip.
In my 260 I got the best results with the 140 vld just kissing the lands. 2.904 - 2.907 oal depending on the condition of the bullet tip.
Re: Berger VLD jump to the lands?
Last weekend I shot an OCW test with 140 VLDs in my 260. 0.010" jammed. Largest group measured 0.929" and the smallest 0.444"
Now that I have a good powder charge I am loading a seating depth test per Bergers suggestion.
0.010" jump
0.040" jump
0.080" jump
They shoot fine jammed, but we will see if they tighten up any with a little jump. I'll post the results.
Last weekend I shot an OCW test with 140 VLDs in my 260. 0.010" jammed. Largest group measured 0.929" and the smallest 0.444"
Now that I have a good powder charge I am loading a seating depth test per Bergers suggestion.
0.010" jump
0.040" jump
0.080" jump
They shoot fine jammed, but we will see if they tighten up any with a little jump. I'll post the results.
