I just got my new rifle back from the gunsmith. Its a Remington 700 chambered for 338 Edge with a 32" 1 in 10 twist McGowan barrel, Defensive Edge brake, adjusted factory trigger, Leupold Long Range Scope with a 40 MOA Nightforce rail, Warne scope rings. It has a Bell and Carlson Varminter stock that the entire length of the action has been bed, other than the magazine hole, with Brownells Steel Bed. The barrel has not been bed, just free floated. The barrel has a 1.25" shank thats 5" long to a straight taper to .810". I've only tried one load so far but the accuracy seems way off. The load I'm using is the one favored by Shawn Carlock. I believe its 94 gr. H1000 on a CCI 250 primer pushing a Sierra 300 SMK. The rifle will not shoot under 4" at 100 yards and it seems, for the most part that I'm getting horizontal stringing of the shots. I'm pretty much set on the 300 SMK's, but I'm open to any other load suggestions and gun mods. I'm pulling my hair out here and any help would be greatly appreciated.
I wouldn't get to worried yet try some different seating depths and see what happens. Also double check your mounts, I have a 1913 303 that shot clovers at 100 m but started to string rounds horizontaly when I then found the rear mount was loose.
I thought the load that was always discussed as the starter load was 92gr H-1000? I've shot that load in 2 different Edge's and it shoots very well. I know that 94gr would definately lock up one of the Edge's and probably be very stiff in the other one.
Over pressure can cause vertical stringing, but as the previous posters mentioned, triple check the scope/mounts.
What velocity are you seeing? This should tell you a bunch about the load.
If some is good and more is better, then too much is just right.
My mind is a raging torrent, flooded with rivulets of thought, cascading into a waterfall of creative alternatives
2812-2821 fps. No signs of pressure. Yes, 94 gr. H1000. I tried two different Leupold Long Range scopes. One with older Hart rings, the other with the Warne QD. Shot exactaly the same with each one. Tried two different seating depths, no change in accuracy. Checked the Nightforce 40 MOA base, it was tight with no visable problems. What is the main cause of horizontal stringing? Should I try bedding the first 5" of barrel?
When I string horizontally it is usually trigger control.anticipating the break or recoil.A range session with a 22 shooting 1 holers at 25 yds will help the technique if thats the problem.If you have never been to a bench match to watch you can pick up tips to help your bench shooting.eg the position of your thumb on the stock
I'm with AJ on this one. I think you should try 92gr and see what you get. 94gr was to hot in my EDGE,. Your chrono might be reading off. With a 32" barrel and 94gr, I would think you would be getting more velocity than 2812.
Have you reloaded fired cases, and are they still grouping @ 4" @100yds ?
Might not have gotten the necks straight when sizing up the first time. But, I would think it is something mechanical, as the EDGE is such an easy round to load for accuracy.