MikeMcCasland
Team Texas F-T/R
I've used it on pretty much all my guns w/o problem. Getting below half MOA accuracy. Suppressed firearms. With and without chassis. Barrel mounted. No problems. And today will be the first time using the chassis mount.
Getting good accuracy with an MS attached isn't the problem. The problem is all of that load workup done with the MS attached is 100% meaningless, because it's screwing with the harmonics of the barrel.
Even with HV & straight 1.250" contour barrels, I've had it shoot lights out with the MS attached, and then open right back up once removed.
A MS has its place for sure. If you just want to chronograph loads at the end of workup to grab velocities, great, it's perfect. That said, you can't effectively load dev off one unless you're running a chassis mount.
For folks who are shooting longer freebore chambers (a large percentage of this forum), where factory load data is basically meaningless, it's critical to be grabbing velocities off every shot during OCW testing. If you do that with an MS, it means you've got to shoot double the rounds, because you can't trust what the rifle is doing with one attached.
That's the whole reason people spent another $500 on the LR.
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