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Old 09-22-2018, 06:36 PM
rflatt
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Twist rate



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Bought a 150 recently and everything i've read says twist rate between 16.5 and 19.
I checked this one 4 times and measures 1:15 exactly every time. Has anyone ever heard of this?
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Old 09-22-2018, 08:34 PM
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"Standard" twist rate for .22LR is 1:16 but there are some manufacturers who may vary from that slightly. If Suhl used 1:15, they had a reason and the way the 150's shoot, it must have been a good reason.
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Old 09-22-2018, 08:41 PM
rflatt
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Shot this one today for first time at 50 yd,almost no wind and was not impressed at all with any good ammo I had.[center x,sk,wolf,eley club & tenex] Finally got some decent groups with Fed Ultramatch
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Old 10-06-2018, 10:36 PM
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Not disagreeing with you but that is a odd number even for Suhl most were 16-19" twist. May I suggest checking it again only this time check it pulling the patch back through the bore rather than pushing.
I personally have had much better luck using that method

Jim
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Old 10-07-2018, 09:35 AM
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I have a 150 and a 150-1.

Both have 1:19 twist barrels.

Last edited by Travelor; 10-07-2018 at 09:37 AM. Reason: typo
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Old 10-07-2018, 11:07 AM
rflatt
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OK checked the twist again this morning this time pulling from the muzzle end using both a patch and a nylon brush with same results 1:15. Shot it again Thursday with a Harrell tuner on it with center x and got it better so decided to try at 100yd and was shocked. Looked real good at 100yd. Love to post pics but haven't learned that yet.
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Old 10-07-2018, 01:45 PM
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Quote:
Originally Posted by rflatt View Post
OK checked the twist again this morning this time pulling from the muzzle end using both a patch and a nylon brush with same results 1:15. Shot it again Thursday with a Harrell tuner on it with center x and got it better so decided to try at 100yd and was shocked. Looked real good at 100yd. Love to post pics but haven't learned that yet.
That's interesting. My friend has a Suhl 150 and tells me it's 1:16. His has a tuner that does great at 50 yards but he removed the tuner to shoot a 100 yard competition yesterday. He's not been able to get it to shoot well at 100 with the tuner installed.

He won the match yesterday is some pretty windy conditions. He used Center-X, shot very well, and did his Suhl justice.
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Old 10-07-2018, 08:56 PM
rflatt
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Mine is the same way.I took the tuner off to. Guess i will make this one a 100yd gun
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Old 10-07-2018, 09:45 PM
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In the "for what it's worth dept", I have a Suhl 150 of '78 vintage. I have measured the twist rate a number of times and keep coming up with 17.25" per revolution. Seems to be some variation in these guns.
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Old 11-06-2018, 05:01 PM
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I'm no expert but have read the reason for the twist rate is it's perfect for 50 yards & they usually don't shoot well past 75. Not sure but I have read it in a couple places but many times rumers spread like that.
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