Finicky 34 Panther Pro Compact .177

[AirTrigr]

This is one of my favorite rifles, and especially since installing a Vortek PG2 powerplant.  I have now shot approximately 1500 pellets through this gun, and am still having quite a time getting any type of consistency or shot groups even after installing the PG2??  I have changed my hold as it still seems hold sensitive, changed the scope to insure I didn't have a bad scope, and tried all (approx. 8-10 different brands, weights, designs) kinds of pellets with little success.  Once in awhile it will group and stack shots, and all of a sudden start throwing them randomly again.  Out of the 8 AG's I have, and a few magnums, this is the only gun I can't seem to get any type of consistency out of.....??  Any ideas?   

AT 

[Mark 611]

check the crown of the barrel to see if theirs any burrs or anything else that looks not to be normal!

[Nathan]

Clean the barrel

Nathan

[shadow]

I don't know if you removed the barrel/ block from the action but it wouldn't hurt to see if there's any play in the barrel block in the locked up position. Ed

[s10gto]

A thought I had was count your barrel lands. The 12 land barrels tend to like larger pellet Dia. I find the bores loose compared to the 8 land barrels. Straight Shooters has a nice chart for pellet sizes.

Dustin