What settings are you using to shoot 25.39gn .22 caliber JSB's with your Impact? 700mm or 600mm?
Slug liner, 700mm 965ft/s on my MK2. Just did 300/300 with 22 x's on 50 meters Bench Rest competition. They like speed.
170 bar on the reg, hammer maxxed out, will have to check the valve setting.
I get over 1000FPS with the 700 B pellet liner, accuraccy is superb at 100 as long as you are going over 950 with the 25's.
Any MKII should be able to handle 160-170 on the reg, the liner type defines the pellet not the length.
'A' liner in .22 would be for the 18g, 'B' liner for the 25g.
i have my impact MK2 with 700mm barrel tuned for 18.13gr jsb´s @895fps....my rifle is burning 0.66bar per shot.... reg pressur is 105bar..... from 250 all the way down to 105bar, i have 145bar to play (145/0.66=219 shots aprox.)
i have my impact MK2 with 700mm barrel tuned for 18.13gr jsb´s @895fps....my rifle is burning 0.66bar per shot.... reg pressur is 105bar..... from 250 all the way down to 105bar, i have 145bar to play (145/0.66=219 shots aprox.)
Don't see why you wouldnt use a 500mm barrel to do that TBH, okay I know that you use less air with a longer barrel per shot but you miss one point, the higher you set your reg pressure the lower the ES will be.