I bought a PP700S-A in Sept. When I got it, it was shooting the 15 gr JSB at 600 fps as advertised. I did not want a scope. I prefer iron sights for quick target acquisition. However, when I got the gun, it shot significantly low when using the factory iron sights and height is not adjustable, only windage. I bought an adjustable rear sight from CZ. Of course it didn't fit, so I milled the 60 degree dovetail larger to accommodate the new rear sight, but because the CZ sight is taller, the front sight was way to short. So, I made a new one. The CZ sight extends beyond the end of the frame and it then impedes the swinging of the breech block in order to load pellets, so I had to radius the left top corner for rotational clearance. Another issue with the PP700 is the difficulty in loading a pellet due to minimum clearance between the breech end of the barrel and the opened breech block. It is obviously doable, but it is awkward. Using a pellet pen really works much better, but the breech block should be scalloped a bit of the left side for pellet pen clearance.
So, after all this work, I finally got to shooting this pistol and adjusting the sights. After about 50 pellets the regulator gave up. I have returned the pistol to the distributor for repair last week. How well this all works out, we will see. I will keep you posted. I really do like this pistol. I wanted a PCP pistol with the look and feel of a Thomson contender. The PP700 does exactly that. The weight and balance is superb. I have been able to hold 1.5" groups at 25 yards so far. I hope to do better when I get it back. The barrel is not choked. The pressure gauge that came with the gun reads way low though and I have asked for it to be also replaced under guarantee. I see no reason to replace the barrel. Although I have not had time to evaluate the correct pellet to use, but I suspect a 5.52mm diameter would be better. I will measure the barrel exactly with pin gauges upon its return. The trigger is more than acceptable to me, It does have a bit of creep, but it is easy to both improve or get used to. For me, I'm going to leave it alone for now. On the question of the number of shots per filling. I was seeing more than 30 before the regulator gave up. It is easy to adjust the hammer spring if you want. I don't know about tunability of the regulator either. It is very loud though and would benefit from a silencer. The factory makes one and there is a cavity in the shipping box foam for one about 100mm long. The barrel nut at the muzzle is already threaded with an 8,mm thread for one. So, depending on where you buy this pistol, it may or may not be available.
