Inch pounds torque wrench

[Steve Blair]

I have to agree even if I am the OP..........this has been enlightening indeed.

However, from the dim, dark recesses of what once used to be my mind, it seems that 65 in lbs won't cover the actions........and another poster said he tore up the intrawebs looking for torque specs and came up dry.........so, even if I get my hot little hands on one of some stripe, I'll be at a loss as to action specs.

I do thank everyone for your thoughts, opinions and founded facts.

I LIKE good information. Tom

So, next question = What do I torque action screws to?

[br]
In an aluminum bedding block or pillar bedded stock, I use 65 lb./in. If the stock is bedded but has no pillars and wood fiber is compressed, I use 50 lb./in. Not saying this is definitive, just he way I do it.

 

[Patrick R]

A couple of weeks back I shot a BR Group match. I was shooting ok for me. On my last 100 yard group I shot a .143" 5 shot group. For me that's pretty darn good. I was putting my gun into it's case when I notice some looseness. The action screws had come loose. Even no torque shoots well some days.

 

[savageshooter86]

Bell and Carlson told me for my stock and action 50 in/lbs for the action screws

 

[brian427cobra]

I use a Mil Spec Borka, I checked it against a calibrating fixture at work, it's still spot on after 4 years of use, and I'm not easy on my tools(I fix 737's), the Borka is simple, easy to use, and the torque is spot on, and most of all spot on.

 

[Outrider27]

Rule of thumb used by USN shipboard and shore based technicians for choice of the proper torque wrench for the job: The specified torque should fall between 20% and 90% of the maximum torque specified by the torque wrench manufacturer. That's assuming a scale reading from 0 in.lbs to some value X. If the scale starts at a number above 0 (not likely in an in.lb torque wrench) the same rule applies - the minum torque will be 20% of full scale or the minimum starting value shown on the scale, whichever is more. The 20%-90% range simply puts the wrench in the area where it's advertised accuracy is actually achieveable; outside that range, accuracy falls off.

While torque wrenches are routinely calibrated to 100% of scale/rated value (calibration once every 6 months in an industrial environment is a common standard), ROUTINE exceeding of the 90% figure in a production environment can cause damage to the torque wrench which will result in erratic behavior (widely varying output for the same specified torque input) and should be avoided. Occasional use at over 90% of rated max is ok.

 

[Big Mc]

Tommy Mc again the Part No. I gave you is for Borka tool Sleepygator stated. It the best thing since the zipper.It has limited use, but works for most firearms I shall be quiet now.. Tommy Mc

 

[M-61]

A couple of weeks back I shot a BR Group match. I was shooting ok for me. On my last 100 yard group I shot a .143" 5 shot group. For me that's pretty darn good. I was putting my gun into it's case when I notice some looseness. The action screws had come loose. Even no torque shoots well some days.

Interesting. That's a great group for sure. But it makes me wonder.......has it shot this well before with the action screws tight? ( a hard question to answer as unless you checked them all the time how would you know?) Also two points: 1 .Makes a good reason for proper torque AND the use of Loctite. 2. If they are tight, is this imparting a force on the action (causing less accuracy) due to improper bedding of the action?

 

[Patrick R]

With the action screws torqued the best 100 yard group before this one in a match was .172".

The action is an aluminum Panda.

I have to find time to check groups again with different torque settings.

 

[lrgoodger]

I have done some experimenting with different action torque settings while group shooting. There is a DEFINITE, repeatable impact on POI as well as group size. Some guns shoot better with light torque in the 10 - 20 lbs range while others shoot better in the 50 - 60 lb range. Anyone have accuracy troubles should check this out.

 

[savageshooter86]

I have been told especially with Savage actions this is true