Fixed the horizontial grouping problem
All your kind posts made me think about the basics. I know this rifle, I know it will shoot very well with many different loads.
Something was wrong, I double checked the scope mount, it is a SK no drill, so there is only one hex bolt to tighten. All was OK there.
I checked the barrel, It is a 2 groove with about 2500 rounds through it, it seems fine, showing the slightest throat errosion. So that was not the problem.
I tore the bolt down to see if it had a busted spring or dirt in the bolt. All was fine there.
I went back out and reshot the load again. Still had horizontal grouping.
So, I was looking at nothing and thinking about what to do next and I happened to notice the action screws, on a fluke, I grabbed the brownells gunsmithing screwdriver, put the large bit in and checked the screws. Yup, the front screw was loose by about 3 full turns, the back screw was loose by about one.
I reshot the load, nice 1 3/4" group with the cast load at 100 yards. I blame myself for shooting 2 of the shots out of the main group.
It just goes to show that sometimes the basics will bite you in the butt and drive you nuts. Now if I could only come up with a load for 190gr match kings that would shoot better.
Something was wrong, I double checked the scope mount, it is a SK no drill, so there is only one hex bolt to tighten. All was OK there.
I checked the barrel, It is a 2 groove with about 2500 rounds through it, it seems fine, showing the slightest throat errosion. So that was not the problem.
I tore the bolt down to see if it had a busted spring or dirt in the bolt. All was fine there.
I went back out and reshot the load again. Still had horizontal grouping.
So, I was looking at nothing and thinking about what to do next and I happened to notice the action screws, on a fluke, I grabbed the brownells gunsmithing screwdriver, put the large bit in and checked the screws. Yup, the front screw was loose by about 3 full turns, the back screw was loose by about one.
I reshot the load, nice 1 3/4" group with the cast load at 100 yards. I blame myself for shooting 2 of the shots out of the main group.
It just goes to show that sometimes the basics will bite you in the butt and drive you nuts. Now if I could only come up with a load for 190gr match kings that would shoot better.
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I'm glad you found your trouble!
I'm shooting 190 grain Sierra HPBT Matchkings in one of my guns (30/06), it likes 54 grains IMR-4350, CCI primers and I seat them almost right on the lands. Very nice and tight groups.0 -
Bpost,
Glad to hear you fixed the problem! By the way it's not the first time any of us has had to back up and say, Duh! I've yet to run any 190's through my 30-06 yet so no help on the loads. I do like the velocities that 168's produce in 30-06 vs. the .308 though. That is about the point where 30-06 starts to pull ahead of the .308
We have the second amendment so that all the rest are secure....UNK>0 -
quote:Originally posted by Snellstrom
I'm glad you found your trouble!
I'm shooting 190 grain Sierra HPBT Matchkings in one of my guns (30/06), it likes 54 grains IMR-4350, CCI primers and I seat them almost right on the lands. Very nice and tight groups.
I have that exact load set for trial this evening. I do use Federal primers but it should be close. I'll let you know how they work out.
I tried some with 785, a very conservative charge but it was crattering primers real bad so I pulled it all down. I just have not had good luck with winchester ball powders [xx(] except 231 in pistol loads [:)].0 -
If your stock screws were loose, better check the innards of your stock - may have split the recoil lug bearing area.
Keep off the Ridgeline0
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