I’m looking to pick up a torque linter to keep with my AT for barrel changes. I’ve read that some people have found that 55 in/lbs works better for return to zero than the factory spec 49 in/lbs.
What do you use?
What do you use?
I didn't know some use 55 in-lb.
I figure the designers of the rifle know a thing or two...49 lbs as specified
Huskydriver-- after you change barrels, does it take 1 or more shots to settle the barrel in?
I swap barrels at least 4-6 times when I shoot across 4 calibers. If your 49 inlbs returns you to zero every time great. Mine didn't so I played around with the torque setting after asking around. I agree 49 is obviously the recommended starting point but if your rifle isn't returning to zero play around with the torque. Mine is dead nuts every time returning to my primary zero now.
So you do 55lbs?
I guess I haven't really ever taken note if a different torque setting would produce a better RTZ. I only swap between 6.5 and 7.62. I should give it a shot. I have always used 49 and the adjust I make to RTZ is pretty small.
Do you have an AT/AX or an AXMC? What calibers are you switching between?
I do 55 inlbs. I shoot a axmc using, 6cm,6.5cm,308, and 338 LM. Give it a shot and report back. I tried up to 65 in lbs and had good results too.
Huskydriver-- after you change barrels, does it take 1 or more shots to settle the barrel in?
If this is happening the barrel isn’t seating correctly.
I recommend removing the handguard when you install the barrel and wiping down the action face of any debris, and the same with the barrel shoulder. Screw the barrel on with the butt on the floor and muzzle straight up and ideally use a wrench on the flat to just barely snug the barrel to insure a good seat. I use the wrench that came with my Borka kit usually. I also snug the action screw with the muzzle up and then go back and torque it.
With this method I can pull and reinstall the barrel every shot with no POI shift at all and no settling in.
What torque are you using with this process Sir
If this is happening the barrel isn’t seating correctly.
I recommend removing the handguard when you install the barrel and wiping down the action face of any debris, and the same with the barrel shoulder. Screw the barrel on with the butt on the floor and muzzle straight up and ideally use a wrench on the flat to just barely snug the barrel to insure a good seat. I use the wrench that came with my Borka kit usually. I also snug the action screw with the muzzle up and then go back and torque it.
With this method I can pull and reinstall the barrel every shot with no POI shift at all and no settling in.
I run it at 70 in lbs. I’ve found accuracy to be better the tighter it is and IMO that’s not overtorqueing that size bolt. My AXMC I ran at 85 in lbs since that’s where accuracy was best.
Were you tightening the barrel by hand with 60-65 or using a wrench to snug as well?my experience mirrors Husky...i started out using 49in lbs and it was fine for a little while
in 2016 i was swapping between 4-5 barrels of different calibers each month, after a couple months i noticed RTZ inconsistency and groups opening a bit
upped it to 60-65 in lbs, and have been running it ever since with no issues, RTZ very repeatable
The 70 inch-lb value is for an AX/AT not the AXMC...right. If yes, I'll have to try it
Were you tightening the barrel by hand with 60-65 or using a wrench to snug as well?
Thanks for reply’s I’m a new AT owner.
holding the stock between my legs, butt stock on the floor and snugging tight as i could with my hands...then torquing the lock screw
multiple ATs
ive never used an MC long enough to have a worth while opinion on them so i cant comment on that
I’m leaning towards the 55in/lbs fix it sticks at the moment. Are the Borka Tools more accurate or better in some way?
I like the small size of the fix it sticks.
Always have used Borka. Never tried Fix it sticks.