Just tested out my .357 AEA Challenger at higher pressure. Went to 27.75 MPa or 4024 psi, which is roughly halfway to the new max of 4500 psi from where we had been shooting at 3500 psi. Results were startling. Shot 105.8 gr slugs that fit in the magazine. High of 1095 fps for 282 fpe. 1st 4 shots all over 226 fpe.
My HP SS .22 cal shoots quite decently and consistently at 50 yards. Other than being unregulated where you have to keep track to hold accordingly, and the bark; this is a fun gun to shoot. The semi-auto feature is sweeet.