Gunsmithing Accuracy International Mount Inch/Pounds Torque ?

[FARGO]

Hello,
Anyone know what Inch/Pounds to torque down the one peice AI Scope mount rings to base (3 of them) and also the rings (8 of them)?

Accuracy International Mounts are machined aluminium one piece mounts.

Thanks in advance.

Tom

 

[ratton]

Re: Accuracy International Mount Inch/Pounds Torque

Rings 15 in lbs, base 31 in lbs

 

[FARGO]

Re: Accuracy International Mount Inch/Pounds Torque

Thanks dagger!

Tom

 

[FARGO]

Re: Accuracy International Mount Inch/Pounds Torque

18 for the rings & 31 for the base is what i have been told by a few people.

 

[Brasscow]

Re: Accuracy International Mount Inch/Pounds Torque

I read an AI document a few weeks ago that said 18 for the rings and 31 for the base.

 

[bm11]

Re: Accuracy International Mount Inch/Pounds Torque

61 seems stout...

 

[lvmike]

Re: Accuracy International Mount Inch/Pounds Torque

31 in/lb : "m5 scope mount clamp screws" for base to pic or dovetail (3x screws).

18 in/lb : "m4 scope mount upper clamp securing screws" (8x)

I have accidentally torqued the mount onto the dovetail at 44 in/lb (misread that chart) without issue, but I wouldnt do it again. 60 will probably damage the mount.

 

[BasraBoy]

Re: Accuracy International Mount Inch/Pounds Torque

Here's what it actually says in the AI AW Users Manual:

Stock Side Screws: 0.8Nm
Shroud Cover Screws: 2.0Nm
Muzzle Brake Clamp : 4.0Nm
Foresight Clamp : 3.5Nm
Rearsight Clamp : 3.5Nm
Trigger Clamp Screws: 3.5Nm
Action Screws: 4.0Nm
Butt Pad Screws: 3.5Nm
Scope to Action Screws
- 4mm key : 3.5Nm
- 3mm key : 2.5Nm
Scope Ring Screws : 2.5Nm

If you're working in in/lb, here's what I make them:

0.8Nm = 7in/lb
2.0Nm = 17.7 in/lb
2.5Nm = 22in/lb
3.5Nm = 30.9 in/lb
4.0Nm = 35.4 in/lb

 

[FARGO]

Re: Accuracy International Mount Inch/Pounds Torque

Thanks for the great info guys...

 

[FARGO]

Re: Accuracy International Mount Inch/Pounds Torque

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bm11</div><div class="ubbcode-body">61 seems stout... </div></div>

Yes... 61 was incorrect... it should be 18 for the rings and 31 for the base.

Thanks.

 

[BasraBoy]

Re: Accuracy International Mount Inch/Pounds Torque

I hope you didn't damage the mount torquing to that level? Seems like you got some bad advice on that?

 

[FARGO]

Re: Accuracy International Mount Inch/Pounds Torque

The mount appears to have no damage... it was an honest mistake on the advice I orginally got... no harm, no foul... (i hope)

 

[treynor]

Re: Accuracy International Mount Inch/Pounds Torque

One followup newbie question - I have the AI 28 MOA mount, but there's no indication which end is forward. Which side do the clamp screws go on?

 

[CopperCreekAmmo]

Re: Accuracy International Mount Inch/Pounds Torque

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Benjamin Sloss</div><div class="ubbcode-body">One followup newbie question - I have the AI 28 MOA mount, but there's no indication which end is forward. Which side do the clamp screws go on?</div></div>

Clamp screws go on the left, opposite of the bolt handle (unless you have a lefty). If you set the mount on a flat surface you can clearly see the can't.

 

[treynor]

Re: Accuracy International Mount Inch/Pounds Torque

Ah! Yes, now I see it. Thanks for the quick response.

 

[Guest]

Re: Accuracy International Mount Inch/Pounds Torque

tffr