logo by smgunner
700 fps is going to require valve work I thinkJanuary 22 2011 at 4:30 PM
|v30 (Login v30)|
Crosman Forum Member
from IP address 126.96.36.199
Response to 1377 flat top setup questions
With the flat top valve and piston and lighter valve spring I was able to get about 630 fps on 14 pumps.....700 fps will probably require some kind of valve work like Phil suggested.
Crosman Corporation 1-800-724-7486