American Rifle Company New Archimedes Action, New Xylo Chassis, and major Mausingfield revision

Yeah, S/N 29. If I recall it's the first of the first "production run" of them. 1-28 were internal testing and sent out to shooters/builders to give initial feedback. Quickly approaching 10k live rounds on it. Incredibly slick now-- not that it was ever a slouch.
 
Yeah, on their website it's 1.38" M-10 QD-L mount. I like it a lot. Return to zero has been well within .1 mil for me going hand-tight with the mounting screws/knobs; I use it to swap between a .300 PRC ELR rig and this rifle until I get another AMG. POI is repeatable enough I can use 4DoF zero angle to not have to re-zero the scope between swaps (zeroed on the one that hits higher).
 
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Got out this morning and ran some rounds though my Archimedes with the Xylo installed. I shot a group in the Foundation first and then swapped and tightened down the recoil lug wedge lock system as well as the action screws (obviously). Point of impact shifted up about 1.5" at a 100 yards between the two but was the same for windage.

Overall I think the chassis is amazingly well thought out. I like all of the features and improvements since the ShotShow version. I only used the Accurate 223 mags at the range today, but last night I bolted in a Mausingfield and ran about 100 6BR dummy rounds through it using the MDT 6BR mags. I had no issues with the bolt touching the mag lips and both actions fed perfectly the entire time.

My only regret is changing my cart at check out back to only one stock during the pre-order. I'm wishing I had another one already.

Sorry for the crap pictures, but I only brought my cell phone to the range this morning.

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just got my rifle from the gunsmith but I need a trigger.

mdt acc
30” Brux with brake
338NM

If I order a trigger tech special and it has a bolt release will it matter? I have a mausingfield action. I don’t see many without in stock and I guess if I use it for something else I might need it...


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You can remove the bolt release easily, so no issue.
 
Thanks for the feedback. The screws can be shortened using either a belt sander or a file. We shipped the Xylo chassis with 1/4"-28 x 1" long socket head cap screws. These are available from McMaster Carr and shorter 7/8" screws are also available. https://www.mcmaster.com/91251a441

Alternatively, you can add a washer to accomplish the same thing.

As for the recoil lug clamp, the Xylo chassis shipped with a wedge designed for a 3/16" think lug which is the same thickness as that of the Rem 700. We'll make more wedges for thicker lugs really soon. It's easily done and we can make them quickly. In the meantime, it a simple matter for a gunsmith to remove an amount equal to the thickness of your lug less 0.188 inches for the face of the wedge designed to bear against the face of the lug/receiver.

Ted

What do you think the time line is on the wedges? Just got the invoice on the LH and all I have are tl3s. Do you need one sent in and any concerns on shooting without the wedge in there?

I don’t really need the standard wedge if you want to just send a prototype with it.
 
I got my rifle put together yesterday. Archimedes action, LRI spun up a 6.5 Creedmore barrel ceracoted to match the color of the action, and a Zero comp 5-27. The lug lock system is genius, once bolted up this probably the most rigid chassis or stock I've ever owned. The fit and finish is out standing. With the M24 barrel profile it balances 3-4" on front of the mag well. The bump on the mag release holds the mag tight, and you can rest the rifle on the magwell, and it cycles with no rubbing. Had my doubts about the grips, but feels great in hand. Going to zero today if my range is open. Starting to think @karagias is some kind of mad genius. Sorry for the messy garage, kind of in between seasons here.
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Got her to range today, and zeroed at 100. 20 rounds and shot 1/2-3/4” group. Super stoked on the ergos and rigidity. Grip feels great, cheek pad is nice. LRI barrel is outstanding, no break in needed. Cleaned when I got back and hardly any copper, 2 wet patchesand 5 or 6 dry and patches were clean.
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Got her to range today, and zeroed at 100. 20 rounds and shot 1/2-3/4” group. Super stoked on the ergos and rigidity. Grip feels great, cheek pad is nice. LRI barrel is outstanding, no break in needed. Cleaned when I got back and hardly any copper, 2 wet patchesand 5 or 6 dry and patches were clean. View attachment 7283245View attachment 7283244View attachment 7283243View attachment 7283243View attachment 7283243View attachment 7283245

Tits on glass.

Can I have it?
 
Ha! I’ve worked my way through a bunch of scopes, but I’m keeping this one for a while. With all that’s going on now, it’s nice to have a new rifle to play with. Nice not to dwell on the situation with virus, and be distracted by this project.
 
So I talked to Jason yesterday, they're asking anyone who has new orders in for the mausingfield if they're interested in the closed top of the ejection port on the receiver like the older ones instead of that cut, I told them sure, I'd like it like that if others would. I think it's a plus.
 
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Got out this morning and ran some barricades. I put some MDT weight kits on the sides and I'm a fan of this setup. Watching trace to impact with Hornady 147 6.5cm factory ammo. I have 3 of the ARC barrel channel weights ordered. Currently at 18.8lb. should be around 22 with the other weights in.

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Will ARC be offering barreled actions or just complete rifles?

Is there a video showcasing the latest Mausingfield revision?

Does anyone currently have shot action .473 bolt face Mausingfield actions on the shelf?