For a pump filler I would say AA all the way - 231cc at 2900psi or 3365psi for the BSA just something to think about."mikehorta"45 shots S510 unregulated, BSA R-10 mrk2 about 70 shots regulated.
For $69 I regulated my 510 Carbine to get 40 shots at 27FPE. And they are all w/i 2%, the majority w/i 1%. Once the regulator breaks in I think they will all be w/i 1%"mikehorta"Do not forget the power curve S510. For the long distance shots are not many. The disadvantages of not being regulated mainly for high power format
Not low - this is the "Carbine" with shorter barrel and tube. Matt has the Xtra, not the carbine."james.dean"#Bigtinboat 27 FPE seems a bit low no ?? Or did you ask to set the rifle at this precise power ?? Mine is running at 30 FPE (my guess and calculation as I don't have a chrony)
And Matt's one from AirArmsSA iş shooting at 33 FPE..
#Ginuwine1969 I too will jump in for the Vulcan .25 (not tactical one) in few month and to fund it, İ thought about selling the air arms, but I can't ^^ It's my little baby and I know I'd regret it..
And I'll try to make another smaller target and shoot it when the weather permits it...