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
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
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.
.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.