Depends what you want out of a pcc.
Pick 2
Reliability, cost or accuracy.
Then tell us your plan for it.
Competition, plinking, etc.
I enjoy my 10mm Kriss Vector.
Best of the best is probably the SPC9 or APC9 Pro, only other gun that you might consider is the Raven 9 if you want to be able to tune it for competitions, but I still hate the idea of buying anything from Lockhart.
I'm a big fan of the Ruger PCC with a Sig Sauer Romeo5 red dot & MagPul stock!
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How do you find your rifle for holding zero after you disassemble it?
At 50m, I can not discern any change in zero.
When I first got the rifle, I adjusted the barrel nut so there is NO wiggle in the barrel between it & the receiver.
It's a solid piece of kit & I highly recommend the Ruger PPC!