If you get the Targetmaster, some things you want to look for:
Front sight is narrower than the one used on the PPC-9 guns. .100 wide as opposed to .125 If you like a lot of light on both sides then good to go. Also watch out for the adjustment screws might be in metrics and not standard threads and pitch,(these are Aristocrats and supposed to be 1/16th allen set serews) so you will need a metric allen wrench. No real problem. Height may not be high enough for all neck shooting distances(25 yd and 50 yds)Dawson precision has been installing these for STI and their dovetail cut not same as the one Aristocrat uses on their sights "if" you want to make a change. I think these designed for the IDPA or IPSC shooters more than the PPC game, but I think will still be good for PPC with right load.
Metal form mags seem to work well. The Springfield style is the preferred one.
These guns to best of my knowlege has a 1:16 twist bbl and may not be real accurate with 115 grain bullets @ 50 yds. 124's and 147's prob way to go.
If you could get a 1:32 twist bbl would be the way to go my opinion.With light loads like shooting a BB gun.
Overall, well made and nice gun for the money.Just my opinion.