For your curiosities on Summits

huntingskeetman said:

(1)Yes mine holds tight at rear contact point, you just have to torque I’d down sufficiently. (2) The bag rider is by jamerllc.com. They have a version for original Oryx models, and for newer ones with M-lok attachment.

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Thanks - I'm talking about "under the action screw", mine hangs in the air above the contact point on the chassis every bit of 1/8" at 40 inch/lbs of torque.
It took a lot of testicular fortitude on my part to crank it down to that level, and the instructions actually say "60"!! - Ruger says to never exceed 30 inch/lbs, to protect the aluminum receiver thread.
The "60" imo is clearly an uncorrected carryover from other version - along with the "mixed rifle types" in the instruction's photos.

Interestingly enough the section of my 10-22 Oryx buttstock that would have (but does not) the M-LOK attachment point is aluminum - I bought that chassis after getting 1 each for CZ and Tikka, and those 2 chassis do have the M-LOK attachment point in the corresponding section of the buttstock made of plastic.

I ordered 2 of the bag riders for the CZ and the Tikka Oryx chassis - I appreciate the intel, and apologies all around for what turned into a thread hijack

Here’s a pic of what I’m talking about - you can see the nylon rods, slightly trimmed, bracketing the bottom of the receiver and seemingly not allowing it to fully seat at 35 inch/lbs…
Since I tried 4 different receivers - this here is an OEM Ruger - I got a dollar, perhaps even dollar fifty that says they are all like that and this could very well be a design feature, but most people don't know because you wouldn't be able to see it when installing a barreled receiver.

MDT should know, but they ain't talkin', at least not yet (I emailed them this photo with questions), but the first time I contacted them about it they simply said to "just crank it down to 45 inch lbs" - "we" won't be doing that before first hearing from 3-4 people who got away with it, but I also don't think it'll make any difference, since there was no movement between 30 and 35 inch/lbs.

The design feature theory is perhaps supported by the fact that the ejection port seems to be correctly lining up, or almost lining up with the top of the chassis' forend.

Still, though, you have to admit that a receiver intentionally not fully seating is somewhat... how you say ... disconcerting.

Hi. New poster.

I had a MkII in an LSS that shot lights out, but it would start misfeeding and fte by the second mag. It would feed fine again when cleaned, but then same thing again, and that’s not going to get me through an NRL match. I was on the cusp of ordering a VuDoo, but I’ve had good experiences with VQ pistols, so I gave it a go.

I ordered an all SS Summit with their SS Bull barrel (8 months wait from their custom shop) and put it in an Oryx. It needed some fitment, but came together nicely. The groups I initially shot were terrible. I cleaned the smack out of the barrel, and they improved on the second outing, but I noticed that Volquartsen cut a flat crown, and I put an 11 deg on just about anything I shoot.

What’s the feeling on their barrels, and do you think cutting a target crown will improve percision?