So tore the Mini down tonight after having it for over a year. Decided to clean it real good, relube orings and drop reg pressure alittle. Very easy to do and is comical just working on it how small and short the darn thing is.
While at it I decided to slug my barrel which it slugged at .213/.2169. Damn thing looks like a mirror also. It has no loose spots and is just smooth start to finish. Reg I dropped to around 1900psi and that was just too low at first. My max was 877 and I wanted to tune it to that. So back in and it's now sitting at 2000psi maybe 2050psi. Which interesting my max fps i got at 2250psi was 937fps, at 2050psi was 926fps. Find that interesting but oh well not gonna stress. I changed the probe oring which hadn't been done for a year and do wonder if I was losing alittle air there making my max at 2250psi lower than it could have been. Got it tuned to 885fps and look forward to checking accuracy tomorrow. 220bar fill I got 22 shots to reg set point. Will fill my bottle early before work to get a full 4000psi fill and see what I get exactly. Assuming 30+ should be no issue. Would be happy if I could get 3 mags worth.
Will say this, if Tom would make the Evol into a bullpup like the slayers I'd probably own a 15" barrel version. While my mini was out of the chassis I held it up like how a bullpup would fit and man it would be a short sucker!