Magnetospeed is really handy at a public range where one doesn't have easy access to down range space.

And, IME, the MS is pretty accurate, doesn't miss many reads.

With the set up I posted, I have to be careful to keep the bayonette aligned with the barrel. Not a big issue, just something I have to remember.

When attached to the barrel, not an issue.

But, I can shoot groups and collect data at the same time, no POI issues.

DF