I picked up a Bob Long Defiant 2 a while back and it's never shot quite right. It has the stock lpr, a CP vasa, and some flavor of torpedo hpr. As best I could tell there was some sort of recharge issue occuring causing the gun to cycle very slowly. The forward stroke of the bolt was fine but the return stroke was noticably slower and caused shoot down over 5bps. Occasionally I could hear a faint squeaking sound from the hpr after a shot, as if the reg piston was moving very slowly.
I rebuilt both regs twice with standard 70d buna orings and no dice. Replaced them all with 70d quad rings and it got a little better but would still act like it was starving for air half the time. I swapped the torp with the evil detonator I have on my Promaster and, wouldn't you know it, both guns now shoot fine.
My question is why would the torpedo barely work on the Defiant but work fine on the Promaster? Am I going crazy or shouldn't the sprung ram of the promaster have made the recharge issue more apparant? Anyone else have a similar experience?
I rebuilt both regs twice with standard 70d buna orings and no dice. Replaced them all with 70d quad rings and it got a little better but would still act like it was starving for air half the time. I swapped the torp with the evil detonator I have on my Promaster and, wouldn't you know it, both guns now shoot fine.
My question is why would the torpedo barely work on the Defiant but work fine on the Promaster? Am I going crazy or shouldn't the sprung ram of the promaster have made the recharge issue more apparant? Anyone else have a similar experience?
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