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Dean's HiPac 2240
Tactical Trijicon ACOG TA01 Style 4x32 Cross Sight Rifle Scope + Kill Flash
TROBB Solid Aluminium Dovetail Power Block with Gmac hollow probe and G-mac Bolt
Gmac Brass Power Adjuster Spring And Guide/Drilled Out Standard Valve For more air space
Hammer Mods//Gmac 30% Lighter valve Spring/Gmac Brass Safety Catch//Transfer port drilled out
Full Gmac Trigger kit/Gmac barrel cut to 9inch/Weihrauch Silencer/Custom Home Made Grips/
New TRACER LEDRAY GL2 LAMP 90m Range Beam//HI-Pac
Well now, Some experts please chime in and HELP!!February 16 2012 at 8:38 AM
|VAF (Login VAFarmer)|
Crosman Forum Member
from IP address 18.104.22.168
Response to spraying
Gun is doing these sprayed groups, right?
But they seem to consistant in the way they are spraying.
this is a c02 or pcp setup? Liquid c02 not getting into the valve is it? I would start checking everything, and would begin with a stripdown, if you can handle it. You are saying it will do 2-3 stacked, and then 4 and five are off and to the left/right.
Chrony it. If nothing is moving around, you should see a velocity difference on the chrony.
Crosmans from a tin? IF so, get a Mic out, and sort by 1000ths. I have had Crosmans come out from .215 to .219 from the tins. BIG difference out of a barrel that might prefer a little larger of a pellet....
Nothing is clipping them when they are going into the breech area?
I would dismantle and make sure everything is clean. Check seals. Check seats. Make sure something isnt happening weird every 4-5 shots, like a valve stem/seal canted and rotating. while your at it polish it all, striker, spring ends, clean the tube, etc.....
Lap the bore while off, with some valve lapping compound, and touch the crown up. Reassemble, making sure you have a good transfer port seal.
Dont put the muzzle break back on yet...
Sorry I can't offer more than basic troubleshooting, but sometimes when somebody mentions something, you say "oh man, I forgot to check it"
Good luck and hopefully someone else will chime in and help.
- tune up - Dave on Feb 16, 2012, 4:51 PM
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