Rifle Scopes ? for M40a1/Mst100 owners

[81sfo]

I have an M40a1 clone w Mst-100 mounted with uso mst mount. My eye relief is not enough to cycle the bolt without taking my cheek off the stock.The bolt will contact my face if i keep my eye in the scope.The scope is mounted as far back as the rings will allow.Is this a common problem with the M40a1 or is it just my scope?Thanks in advance.

 

[long-shot]

Re: ? for M40a1/Mst100 owners

Sounds normal to me. It's a tuff scope to get a full sight picture. My bolt doesn't make contact, but I'm a little further back due to LOP and eye relief.

 

[BasraBoy]

Re: ? for M40a1/Mst100 owners

I have a GAP M40A1/MST100 combo with the adjustable HTG. The mount is the USO repro.

My scope is mounted so that the forward ring is approx 1/4" back from the start of the Objective bell.

When I obtain the correct eye relief the rear of the bolt is touching my cheek when drawn fully back but it does not interfere with cycling the bolt.

My other "precision rifle" is an AI AW with S&B PMII - same with that set-up.

I've got the same LOP on both rifles (13.5")

In the AW Users Manual section entitled "Setting up the Rifle" it says:

1) Adopt the prone firing position
2) Adjust the Bipod legs to suit terrain
3) Fully open the bolt
4) <span style="font-weight: bold">Place the cheek on the stock just touching the bolt shroud</span>
5) Check and if necessary adjust the position of the telescopic sight to obtain the correct eye relief

Later it says in the section on Eye Relief:

"Because the head position on the cheekpiece is determined by the open bolt, head position is always the same, so the eye relief is always the same"

When i got my M40A1/MST100 I never questioned the bolt touching my face - I kind of assumed this was how it was meant to be...like the AW?

 

[wilshire1412]

Re: ? for M40a1/Mst100 owners

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 81sfo</div><div class="ubbcode-body">I have an M40a1 clone w Mst-100 mounted with uso mst mount. My eye relief is not enough to cycle the bolt without taking my cheek off the stock.The bolt will contact my face if i keep my eye in the scope.The scope is mounted as far back as the rings will allow.Is this a common problem with the M40a1 or is it just my scope?Thanks in advance. </div></div>
Mine is 13.5 LOP and I have the scope set back as far as I can get it in the mount.
I find that the rear of the bolt will just touch me if I keep my eye in the scope while cycling the action.