I hear ya'Mc.
However, I'm gonna take a moment to offer a thought.
Building a center fire rifle that is capable of bug holes at 100 yards is no big deal.
Then you figure out the handloads necessary to obtain consistent trajectories.
Once you accomplish that, folks won't argue with you about the rifle's capabilities.
Now, we've established it's not that big of a deal to build a rifle that's capable of predictable accuracy,
so we know that it's really not the rifle that is the limiting factor, it's finding cartridges that are capable
of allowing the rifle to show just how good it is. With rimfire, it really is the ammunition quality
that limits the results of the rifle. No rifle can make cr*ppy ammo produce consistent trajectories.
With rimfire, I check that chronograph after every shot. Rarely does it spit out the "dup" code.
Getting tight mv's for 5 shots in a row is almost impossible. With an SD of 15 you already exceeding
the ability of the ammo to produce the trajectories necessary to produce a bughole
just from time of flight and gravity alone. It's not the rifles, it's the ammunition.