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7SAUM 168 VLD

Well I finally put together my Stevens 200 7mm RSAUM. Came out pretty nice and decide to work with 168 VLD's and H4350.

Specs:
24" Criterion barrel
7saum rem brass Full length
Berger 168 VLD Hunting
H4350 powder
Wolf LR Primer
Seated .010" off the lands 2.954" col


Shot 56grs to 60grs. at 100 meters

I got pressure signs around 59.2grs. very faint, but got ejector mark at 60.4 grs.

A= 56.0
B= 56.4
C=56.8
D=57.2
E=57.6
F=58.0
G=58.4
H=58.8
I=59.2
J=59.6 SLIGHT SWIPE ON BRASS/ PRIMERS GETTING FLAT
K=60.0 SAME AS ABOVE
L=60.4 EJECTOR MARK/ FLAT PRIMERS.
STOPPED...

letters F , G, and H share same poi,and under MOA. I didn't finish OCW and made a short cut. Found pressure and worked backwards form their. Letter E looks to be a scatter node. 59.2grs had more recoil and muzzle sound changed,maybe due over pressure?

Going to work around 58.0 to 58.8grs. as ocw.

1021121722.jpg


1021121834.jpg
 
58.4 should pult you square in the middle of a node. Shoot them with a .010 jam, just touching, and .020 off and see what happens.
 
jsthntn247 said:
58.4 should pult you square in the middle of a node. Shoot them with a .010 jam, just touching, and .020 off and see what happens.

I agree with you on the 58.4gr node. 1% in charge in either direction should still give MOA. My plan is to not jam the bergers, and plan to use Bergers method. It has work well for me in the past with other rifles.


Load 24 rounds at the following COAL if you are a hunter (pulling a bullet out of the case with your rifling while in the field can be a hunt ending event which must be avoided) or a competition shooter who worries about pulling a bullet during a match:

.010 off the lands (jump) 6 rounds
.050 off the lands (jump) 6 rounds
.090 off the lands (jump) 6 rounds
.130 off the lands (jump) 6 rounds
 
I shoot allot of them too and find just kissing the lands usually shoots best. I shoot .002 tension and have never had one pull out.
 
Got around to playing with seating depth, and looks like I found a real good sweet spot. Thanks for all the help and pointers. Load Chrony around 2960 avg with 24" barrel.

settled on 58.4 grs H4350 as OCW

A= 2967 fps / .070" off lands
B= 2958 fps / .075" " "


1029120658.jpg
 

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