XLR Element 4.0 Magnesium Chassis: My Story

Joined
Dec 21, 2018
Messages
33
Location
Utah
I recently purchased the XLR Element 4.0 Magnesium Stock in 700 Rem LA.

I’m shooting a .300 win mag with a 28 inch carbon barrel and a browning hawg muzzle brake.

i’m shooting the discontinued Federal premium berger 215 grain ammo at 2902 fps.

In short, I spent two days chasing my POI all over hells half acre. I remounted my scope and muzzle break three times each. I purchased brand new scope mounts. I mounted the scope on another rifle to make sure the scope is functioning properly. I spent a half day re-torquing the action screws every five shots. I purchased another torque screwdriver, thinking mine might be out of spec. I used enough supporting sandbags to make artillery bunker. I used a sled with 40lbs, and I shot at 100, 200, and 300yds. The very best groups I could get at 300 yards would barely fit in a 9 inch pie plate. After day two, I scoured the Internet for answers and came across a few threads on this forum and a few other forums where the manufacturer indicated in-frequent issues with action screw tolerances and recommend lithium grease on the action screws to take care of the problem.

This morning, I put a light coat of lithium grease on my action screws and torque them both at 65 ft-lbs. Here are my first 3 shots (image 1).

I immediately jump to the 200 yard range and adjust my yardage. First shot looks good. Second shot goes high and left and my stomach sinks. So I re-torque the screws and shoot a third round (image 2).

Feeling a bit more confident I have things figured out I immediately jump to the 300 yard range. My first three shots are 1, 2, and 3 (image 3) using the dead center bullseye. I’m supposed to be a little over 3 inches of drop at 300 yards so I adjust for the drop. I then take a 20 min break and shoot my next three shots 4, 5, and 6 (image 3) at the top right bullseye. I take another 20 min break and aiming at the top left bullseye shoot until the action screws start to move on me again.

So it seems that the lithium grease did its job but now I’m having to tighten loose action screws somewhere between every four to six rounds.

I suppose I’ll try some Loctite at some point. Not what I expected from the purchase. When everything’s dialed in it’s a tack driver. I just don’t feel confident taking this rifle hunting.

Any ideas on a permanent fix?
 

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Tbone26

FNG
Joined
Oct 31, 2018
Messages
66
What stock/chassis did you have the barreled action in originally? Was it a shooter up until you put it in the element chassis?
 
OP
L
Joined
Dec 21, 2018
Messages
33
Location
Utah
Most recent stock was Peak 44 Bastion (0.8 MOA) prior to that the H-S Long Range that came with the original purchase (0.7-0.8 MOA).
 

khuber84

WKR
Joined
Jun 6, 2019
Messages
1,664
I had a 300nmi in an element MG chassis, I chased consistent accuracy issues till I bedded the recoil lug. Ended up selling the chassis and going back to my EH1.
 

swavescatter

Pain in the butt!
Joined
Apr 3, 2021
Messages
1,254
Did you cut the bolt release pin short? I had a hell of a time getting my 223 action coplanar to the chassis until I called XLR and they mentioned that it's sometimes needed. It could be that your action isn't sitting flush.
 

swavescatter

Pain in the butt!
Joined
Apr 3, 2021
Messages
1,254
Did you cut the bolt release pin short? I had a hell of a time getting my 223 action coplanar to the chassis until I called XLR and they mentioned that it's sometimes needed. It could be that your action isn't sitting flush.
 
OP
L
Joined
Dec 21, 2018
Messages
33
Location
Utah
Did you cut the bolt release pin short? I had a hell of a time getting my 223 action coplanar to the chassis until I called XLR and they mentioned that it's sometimes needed. It could be that your action isn't sitting flush.
I did not modify the bolt release pin. Is that something that I should have a gunsmith perform or is that something I can do?
 
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