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Torque Specs! |
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PhatForrest ![]() Optics GrassHopper ![]() ![]() Joined: November/30/2015 Location: NE USA Status: Offline Points: 2 |
![]() ![]() ![]() ![]() ![]() Posted: June/14/2020 at 22:38 |
Zombie thread I know, but this thread comes up when torque specs are googled.
Vortex says only use 18 inch pounds on ring cap screws with their scopes. Comes on a note in thier packaging.
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rayfoy ![]() Optics GrassHopper ![]() ![]() Joined: August/09/2015 Location: Quad Cities Status: Offline Points: 13 |
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Cool. Small world. I was born up in Woodstock, Il., grew up in a little town called Wonder Lake. Went into the Army when I was 17. Moved to Arizona when I got out. Nice to be back in the Midwest.
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Ain't nothin' but a thing.
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cheaptrick ![]() MODERATOR ![]() ![]() Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
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I'm a SE Iowa native. Burlington.
Listened to 97x in high school.
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If at first you don't secede...try..try again.
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rayfoy ![]() Optics GrassHopper ![]() ![]() Joined: August/09/2015 Location: Quad Cities Status: Offline Points: 13 |
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I believe the base that Marlin uses is made by Weaver. That would explain the difference in recoil slots, even though I thought all rails built of that design were standard on dimensions. Yes, it is Davenport. Home of 97X and Dwyer and Michaels in the mornings. Still getting settled in here. Used to being out in Cochise County, Arizona the last 34 years. Had plenty of places for extreme long range shooting. Going through a bit of a challenge here to find ranges with enough distance. Longest found in Milan is 600 yds. |
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Ain't nothin' but a thing.
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cheaptrick ![]() MODERATOR ![]() ![]() Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
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Or is it Davenport?
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If at first you don't secede...try..try again.
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cheaptrick ![]() MODERATOR ![]() ![]() Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
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Welcome to Optics Talk.
Your rail was Weaver and the rings were Picatinny, or the rail was out of spec? What Quad Cities? Home of 97x rock station in Moline?
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rayfoy ![]() Optics GrassHopper ![]() ![]() Joined: August/09/2015 Location: Quad Cities Status: Offline Points: 13 |
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I apologize for posting this in torque specs. I was looking through the posts to verify I had torqued the screws on mine correctly. I thought I had moved to a different forum on scopes in general. Oops. |
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Ain't nothin' but a thing.
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rayfoy ![]() Optics GrassHopper ![]() ![]() Joined: August/09/2015 Location: Quad Cities Status: Offline Points: 13 |
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Hello all. New to the forum. Just received my new SS 10X42MQ. I have read and watched numerous reviews on this optic. Needless to say, when it arrived and I inspected it, I was very satisfied with the quality. I assembled the sun shade and Butler Creek caps onto it. Everything fit perfect except for the rear cap, which sets quite far in on the focus adjustment. Minor, in my opinion, as I will simply adjust focus for my eyes and reinstall cap. What I was disappointed in, however, was the picatinney rail installed from the factory on my Marlin XS7VH. When I attempted to install the SWFA medium height scope rings, they would not set down into the recoil lug portion of the base. This worried me. The first thing I did was measure the screw shank on the bases. A perfect 0.196 width. (as expected) I next measured the recoil slots on Marlin's rail. What I found were slots machined to only 0.146 in width! Far from the 1913 Picatinney specs which are 0.206 +.008. An online search for bases to fit the Marlin proved unsuccessful. All was not lost though. I removed the rail and clamped in a vise with aluminum jaw covers, filed the appropriate slots to the necessary width, assuring to maintain accuracy by measuring every 5 file strokes. Process was tedious and time consuming, but successful. I then continued with mounting. Scope aligned perfectly, medium rings were correct choice. (proper measuring before ordering is important). The dimensions on scopes and rings is invaluable. Thank you SWFA for making these available on your site. I do have one question. In the future, are aftermarket bases for the Marlin X7 series of rifles going to be made available? The rifle , as it comes from Marlin is less than suitable for long range shooting. However, the action, trigger and barrel(heavy barrel) are suitable. I am positive I can turn this inexpensive rifle into a fairly accurate piece of equipment. May be a bit of a challenge, but good bases would help. (I do have a laminate thumbhole stock ordered for it) Thanks for listening to my ramblings. I look forward to the comments from everyone. Maybe I'm a bit |
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cheaptrick ![]() MODERATOR ![]() ![]() Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
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Thank you for sharing and welcome to optics Talk, Hoots.
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Hootsmandoo ![]() Optics GrassHopper ![]() Joined: February/12/2015 Location: Seattle Status: Offline Points: 1 |
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Maybe this is a dead thread, but here's some recent torque info.
Tikka T3 Stainless 30-06 Vortex Viper HS 2.5-10, 30mm tube DNZ Game Reaper one piece DNZ package says 25 in/lbs. The guy at DNZ says 30 in/lbs for both base and rings for this combination, no Loctite. I took the middle road: -25 in/lbs. all screws (4 in base, 2 in each ring) -Blue Loc-tite Here's the current DNZ FAQ page link: http://www.dnzproducts.com/faq/ |
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-Aim small, miss small.
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jdgray ![]() Optics GrassHopper ![]() Joined: October/26/2012 Status: Offline Points: 28 |
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Just installed a set of Farrell rings. Instructions say: 50-55in/lbs for ring to base screws 15-20in/lbs for ring cap screws Not a big difference on the base, but is different. |
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cheaptrick ![]() MODERATOR ![]() ![]() Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
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The caps? I believe about 22 inch pounds. 25 inch pounds base to action.
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If at first you don't secede...try..try again.
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avery ![]() Optics Apprentice ![]() ![]() Joined: March/21/2013 Location: Canada Status: Offline Points: 85 |
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leupold PRW 30mm? I didn't see on here forgive me if I missed
Thanks, |
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Rancid Coolaid ![]() MODERATOR ![]() ![]() Joined: January/19/2005 Location: United States Status: Offline Points: 9318 |
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Who shat in my thread?
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Freedom is something you take.
Respect is something you earn. Equality is something you whine about not being given. |
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Urimaginaryfrnd ![]() MODERATOR ![]() ![]() Resident Redneck Joined: June/20/2005 Location: Iowa Status: Offline Points: 14882 |
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Wouldnt it be nice it there was simply an industry standard.
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"Always do the right thing, just because it is the right thing to do". Bobby Paul Doherty Texas Ranger |
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338LAPUASLAP ![]() Optics Master ![]() Scope Swapper Joined: October/17/2009 Status: Offline Points: 2590 |
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I think that this should be put into a format that Anyone can use.
If we could identify the ring type or the base type and than identify the torque specs. I personally would find great value in that and then I would hand it out to many people who ask. Right now I just refer everyone to buy a Wheeler Torque Wrench and tell them not to exceed 20 on the rings and 50 on the bases. I never knew I was so far off. Hope no one ever broke anything... ![]() fwiw |
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No one
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FireEMT5 ![]() Optics Journeyman ![]() ![]() Joined: September/07/2010 Location: S.E. Minnesota Status: Offline Points: 317 |
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http://swfa.com/Aadland-Triple-Lug-30mm-Rings-P50709.aspx
Rings to base - 35 inch pounds Ring cap screws - 15 inch pounds
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budperm ![]() Optics Retard ![]() ![]() show me your sheep!! Joined: January/01/2009 Location: Pennsylvania Status: Offline Points: 31552 |
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Man I'm keeping my hand grenade!!!
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"Peace is that brief glorious moment in history when everybody stands around reloading".
--Thomas Jefferson |
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Clark ![]() Optics Apprentice ![]() ![]() Joined: February/13/2004 Location: Near Seattle Status: Offline Points: 124 |
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In calculating the max torque for scope base screws, the threshold between the male and female threads failing is at 1 to 1.2 times the screw root in engagement. With that I can predict the failure threshold for various lubricants. I do not verify with destructive tests on actual rifle receivers, but with equivalent soft steel plates of the same thickness. Use Unbrako screws [180 ksi steel] If you are inclined to calculation and verification, I would suggest three levels: 1) Clean and dry 2) oil or grease 3) wax. Calibrate the toque wrench with a weight measured on a balance beam. |
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cheaptrick ![]() MODERATOR ![]() ![]() Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
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![]() I needed to know how much to torque my new Talley LW's today got on here, remembered this thread and ....viola! ![]() |
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If at first you don't secede...try..try again.
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