The subject under discussion is a Ruger Mark II 30-06 rifle. Ammo is Barnes 180 TTSX. 200 yard shots go alternately to ten o'clock then 2 o'clock, ten then two back and forth like a windshield wiper action. The groups at ten and two are tight enough -for 200 yards- but this action has me baffled. If they were simply all over the place that would be one thing but this?
It is so consistent. Anyone seen this before? Thoughts. Sharps
Windshield Wiper Groups
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- Senior Levergunner
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Windshield Wiper Groups
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Jeff Cooper
Jeff Cooper
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Re: Windshield Wiper Groups
I would suspect a bad scope , Mount or bases. Also bedding issues can give the same results. I had a Rem. 700 .243 that shot that way until I bedded it and floated the barrel. It then became a tack driver.
Re: Windshield Wiper Groups
I agree with Chuck. I've seen a loose front sight do a similar thing!
- Sixgun
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Re: Windshield Wiper Groups
Need more info....can't make a reasonable analysis with limited info.........how many shots were fired?........how many rds at 10 and 2?.....what was the distance from 10 to 2?.....how does the gun regularly shoot? .....try different ammo?....wind?....feel good on the hold?.......does it do it at 100?.....
Don't know how many rounds you fired but a limited amount with one kind of ammo is nothing.....anything can be coincidental with minimal shooting.
Don't know how many rounds you fired but a limited amount with one kind of ammo is nothing.....anything can be coincidental with minimal shooting.
Re: Windshield Wiper Groups
Sounds like my old M16, yes it was made before the forward assist, in basic training. The front sight wobbled a little from wear. It was the only gun in that armory which did not even have the raised area to lift the dust cover from being flat against the side of the receiver. That gun wasn't accurate enough for M.O.U.T. type of fighting.
D. Brian Casady
Quid Llatine Dictum Sit, Altum Viditur.
Advanced is being able to do the basics while your leg is on fire---Bill Jeans
Don't ever take a fence down until you know why it was put up---Robert Frost
Quid Llatine Dictum Sit, Altum Viditur.
Advanced is being able to do the basics while your leg is on fire---Bill Jeans
Don't ever take a fence down until you know why it was put up---Robert Frost
- GunnyMack
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Re: Windshield Wiper Groups
Yep, sounds like glass or mount issues, you can never go wrong with bedding and floating!
BROWN LABS MATTER !!
Re: Windshield Wiper Groups
Proper trigger control is just as important with a rifle as it is a handgun. Jerking the trigger could pull shots to the side.
The Rotten Fruit Always Hits The Ground First
Proud Life Member Of:
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Proud Life Member Of:
NRA
Second Amendment Foundation
Citizens Committee For The Right To Keep And Bear Arms
DAV
Re: Windshield Wiper Groups
Could be. That old M16 could let you move the trigger side to side about 3/4 of an inch. Too far right and it wouldn't release the sear. Too far left and the sear released without the trigger moving backwards at all.
D. Brian Casady
Quid Llatine Dictum Sit, Altum Viditur.
Advanced is being able to do the basics while your leg is on fire---Bill Jeans
Don't ever take a fence down until you know why it was put up---Robert Frost
Quid Llatine Dictum Sit, Altum Viditur.
Advanced is being able to do the basics while your leg is on fire---Bill Jeans
Don't ever take a fence down until you know why it was put up---Robert Frost