My HPA 2250

[paul]

Well, finally finished it,welll aleast to this stage, i will order a 2260 tube soon. With a stock 14" bbl.,trigger tune, home made power adj. ,3000psi at 850Psi output,  B&A max-flo valve,i,m getting an 670  Fps average.Using 14.2 RWS super hollow points,they dont go thru a 1/2" plywood at 15 yds, but sure do make a bulge on opp. side . The pistol scope is my new 2X20 Millet,from Midway usa, avery fine quality scope,very happy with it .
 Any ideas,on what a 2260 tube will do , for more FPS, shot count is not an issue with me ,this is a hunin gun.