PSA........ I have to say so far I'm pretty happy with them. Yes they do run some different dimensions but the pa10 that I ordered for my shop and later was bought by my employee has shown decent value and construction The biggest issue so far was the lube they had on the thing was very thick and the gun was new and pretty tight, however we cleaned it out and applied a little clp...problem solved( it was about out 12deg f that day) we are running the 18" barrel 1/10 twist and with 165gr colt (silver bear) blasting ammo the gun was ringing 8" steel @ 220 yds in no time. I'll keep you guys posted as I'm putting together one for myself from parts collected from G.B. and psa as well stuff from my inventory