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VLD seating depth poll

 
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  #50  
Old 03-15-2014, 12:46 PM
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Join Date: Jul 2006
Location: AB, Canada
Posts: 555
Re: VLD seating depth poll

338edge - 300otm -0.010 in land
7 rm -190 matrix vls - 0.015 in land
7 rm -168 vld - 0.010 in land
223 rm - 64 fb vld - 0.010 in land
Groups from 0.25- 3/8 in

I start seating them in land with good groups and is no sense to chase groups.
Ifrom now on i enjoy busting rocks and prepare for hunting
If your main purpose is competitive match - then yes you have to get the tigjter group possible
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My 338Edge
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  #51  
Old 03-15-2014, 02:53 PM
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Location: Pa/Maine
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Re: VLD seating depth poll

300 RUM at factory length with 175 barnes out of a Remington 700
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VLD seating depth poll-targets-008.jpg  
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  #52  
Old 03-15-2014, 05:21 PM
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Re: VLD seating depth poll

Quote:
Originally Posted by gunner69 View Post
Ok I wanted to share some results of the berger sorting technique video I posted: Let me give you the finer details first.

Rifle; Custom built .284 Win, Defiance Action, Schneider 28" 3 taper fluted 1:9 twist, reamed for neck turned necked up Lapua brass, Jewell Trigger 1.5 lb, Grey Bull bedded stock., Near base and Rings, GreyBull/ Leupold scope, PTG bottom metal.

Load: necked turned Lapua brass. .001 neck tension, Wolf Large primers, 51.4 gr R17, Berger 180 VLD hunting bullets sorted by seating depth. I am getting 2848 fps. In the video I mention that my rifle like them seated .010 in the lands. I subsequently discovered that it actually much prefers then .010 off the lands:

Here is the results: Target is a 50 yard target 1/2" rings. The 6 round group was taken at 302 yards. This makes my rifle approx. 1/4 MOA accuracy

Attachment 9564

Again here is the sorting technique;

CONSISTENT BULLET DEPTH SEATING - YouTube
You have to measure the wider side of the group. (not the narrow one)
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  #53  
Old 03-16-2014, 03:18 PM
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Join Date: Dec 2012
Posts: 340
Re: VLD seating depth poll

Im loading
7mm 168 vld in two 7mm RMs
.270win 140gr vld
.308 168gr vldh 175vldt 185vldh in two .308 win. 30.06 and 300 win mag.

I have ran the seating depth test from
.120 to .020 jam multiple times per rifle. Every one of them shoots .025 jump the best.

I can not figure how people are getting good results from .100 + jump! I think they have to be especially sensitive to run out because of the drastic bearing surface transition but can't see how jumping them would negate run out.
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  #54  
Old 03-21-2014, 01:52 AM
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Join Date: Dec 2012
Location: thumb of michigan
Posts: 34
Re: VLD seating depth poll

6.5 creedmoor
140 vld. -.010 jump 1/4 moa
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  #55  
Old 03-21-2014, 04:28 PM
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Join Date: Mar 2014
Posts: 129
Re: VLD seating depth poll

.243 win, Berger 95 grain VLD hunting, 0.020" off lands, 0.25" groups @ 100 (Weatherby Vanguard)

7mm RM, Berger 168 gr VLD, 0.020" off lands seemed to be the best

Found that the seating "window" is much tighter than Berger's reloading manual states. Instead of 0.020" window it's more like 0.005" Translation, lots of money spent on trying to optimize seating. That is the cost of shooting the VLD's I guess.
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  #56  
Old 03-21-2014, 06:36 PM
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Join Date: Mar 2012
Location: North Idaho
Posts: 45
Re: VLD seating depth poll

Defensive Edge 338 Edge canyon rifle
300gr Berger OTM hybrid tactical
90gr H1000
-.035 off the lands


.097" 3 shot group @ 100yards
Bottom picture is a 8 1/2" 4 shot group (cold bore shot included) @ 1,763 yards.
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VLD seating depth poll-resizedimage951369883208949.jpg   VLD seating depth poll-resizedimage951379785078629.jpg  

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