I need some group diagnostic help

perhaps a minor flinching problem. some days my savage m12 22-250 shoots into i hole some days .75. may have to do with how much caffene i've had
 
I check the chamber length with the 50gr V-Max and got 2.32" so I have been seating them to 2.295 so that is 0.025" for that bullet. I did not measure any of the other bullets and left the seating die at the same settings. I need to borrow my buddies Stoney Point setup and measure the ogive.

I thought about eliminating myself so last trip I used a Lead Sled and a second shooter with the same results.

Thanks for the help all.
 
I had the same problem with a r-15 it turned out to be the cci primers went back to federal match primers and the problem went away I had been using federal when I came up with the load but ran out and at the time all they had were cci so I bought a brick thinking it would not be a problem. I was mistaken
 
Look at the crown. I just went through this with a 22-250. It would throw a flyer out 6" then shoot 3 or 4 into a nice groupe and then a flyer with hand loads and factory loads. I had never had a rifle do this so I was feeling the way you are. I had just got this 22-250 I went over it with a fine tooth comb and found a small dent on the crown. When I re crowned the barrel the point of impact went high right.

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Thear are 5 scope adjustments on this target. The hole on the upper left is where the flyers would go. Shot with Rem. xp100 at 200 yards.
 
May not be your problem...but I spent weeks with the same thing your going through turned out to be loose ring bases
 
I agree check scope and rings. Crown problems, Receiver problems, bedding problems, and such do not produce consistent results. These things tend to be "shoots real good today" then goes South tomorrow. Crown problems are rare these days and happen suddenly. Cheap Scopes should be outlawed. I had so much trouble, I bought a Leupold for my Son's 22. Cost three times what the gun did but it hits and does not wiggle around.
 
ACL keep us posted on your findings. I am having the same problems with my Rem 223. I have tightened everything up. So I don't believe anything is loose.

I do know differnt Bullets shoot different groups with the same powder charge. For example I get quarted size groups with 55gr Blitzkings and 3" groups with 55gr Hornady Bullets
 
Quote:
seat them closer to the lands, the typical group within a group is a sign to tweak your OAL
RR



I agree, that is why I asked about seating depth.

Real simple test to run. Take you best group to date, load 5 at that depth, load 5 seated .010 deeper and 5 seated .010 farther out. Shoot those three groups. See what it does.
 
I have check the rifle over and made sure the action screws are torqued properly. I loaded up some more loads with H4895 and varied the primer and seating depth. Next trip to the range I will see if the work paid off. I will keep you all posted, thanks for the information.
 
Ok, I performed some of the checks mentioned above prior to another frustrating trip to the range this morning. I checked the bedding and it seems good. I took the scope off and made sure the bases and rings were tight. I picked up a second scale to verify the loads were consistent. I went to the range with the load that showed the most potential and the first four groups I varied the primer.

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What is up with this group?
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It defiantly did not like the CCI 450
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Next I tried moving out the seating depth in .010 increments.
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Lastly I did not try any hotter load with H4895 so I gave that a go....not so good.
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I ran the bore snake down the tube and revisited another load that showed promise. I varied the primers again with not so good results.

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I am going to try and borrow a better scope before the next trip out. If that does not show any improvement I will look at re crowning. I know I have not shot anything heavier yet but I really don't know what else to do at this point. Any more information would be appreciated.
 
It has a Buhsnell Banner on it at the present time that worked fine until now. (I know I need better glass but I have gotten some outstanding groups with it in the past)
 
That looks like bedding to me. And the crown comments are good. If you have access to a borescope, look at that crown...from the inside. I've recently recrowned two Savages barrels, on new guns, because some moron at the factory had run them on a 60 deg. center, in a lathe..and pushed a ring of metal right back into the bore! You might try putting some pressure under the barrel, out near the forend, to see if it shoots better that way; if it does, according to Shilen, that is proof that your bedding is not good. A matchbook cover, whatever...
 
I'm with cajn. Try another scope. I had a buddy whos ar did close to the samething you gun is doing and was trying all different loads. He had the same gun as I did and mine shot great. I gave him some of my reloads to try at the range. Same bad group. He was ready to sell it to me. I shot it. Same bad groups. Pulled my scope of my ar and put it on his. Shot just about as good as mine. His scope is gone and he couldn't be happier. Get a different scope.
 


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