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bullets stringing

glockman40sw
I have a ruger 77/22 22 hornet that starts stringing the group at a 45 degree angle from center after firing about eight to ten shots. Each shot is about a half inch from the last one going to the right at about 2 o'clock from the center of the target. If I let the rifle set for a little while and start shooting again it will shoot bulleyes for the first few shoots and then start stringing the shots again. What can I do to fix this problem?
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Date Votes
  • glockman40sw
    I have a Ruger 77/22 in 22hornet. It started stringing shots after the fourth or fifth round. Once I let it cool down it shoots four or five bullseyes and then starts stringing the shots again about an inch apart in a 45 degree angle from center of target. I tried to pass a dollar bill between the forearm and the barrel and it won't even start. Could my problem be from stock pressure? If so, what type of glass bedding/pillering, etc. should I be looking to get done? Thanks for your input in advance.
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  • perry shooter
    Sounds like the barrel has internal Stress when bored and rifled maybe one of those firms that deep freeze / heat treat could get it to not act this way but I would see what members like NONOSENCE has to say.
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  • blackmesarifleco
    +1
    The deep freeze is a cryogenic treatment. Also you might see if the stock is touching the barrel and with barrel heatup stringing.
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  • RCrosby
    And then there's always contacting Ruger. My first 77/22 had a cracked receiver rail that had been factory repaired, and didn't affect function, but in a new rifle I didn't feel it was acceptable. They replaced the rifle, no questions asked.
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  • tsr1965
    This is a familiar problem with Ruger's wooden, and some synthetic stocked rifles. I have accurized several of those for friends, customer's, and myself(77MKII SS in 243, and 22WMR varmint for myself, the rest were 22 Hornets, and a 77MKII in 22-250 with a walnut stock).

    Check the barrel clearance with a dollar bill, then a dollar bill folded in half. Any contact, the rifle needs work. My accurizing includes, but is not limited to, pillar bedding the action, free floating and lead lapping the barrel, shimming the bolt on the 77/22, 77/22M, and 77/22H models, and a trigger job on all. The factory triggers are horrible at best. The owner of the 22-250 swore the factory trigger was only 5 pounds and very crisp untill I showed him with a trigger pull scale, and machinist rule it was actually near 7 1/2 pounds, and had almost an 1/8 inch of sear engagement, and the same in overtravel. I have done several Hornets in both the walnut stocked, and Varmint models, that had the exact problem you speak of. Every one would put 10 shots in a nickel or better, at 100 yards when it was done.

    It just needs some TLC.

    Best
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