Couldnt get my A1 to chrono higher than 250?

[HurtsDonut]

hey guys..

i was out today and couldnt get my a1 to chrono any higher than around 250fps. at one point i literally turned the velocity all the way out and just could not get it any higher than around 230-250...

im using joy rage settings, pressures are 275 or so and 59.

any thoughts on how why this would be and what problems i should be looking for? I really don't think the gun has more than 10 cases through it.

thanks in advance for any thoughts.

[HurtsDonut]

hey guys..

i was out today and couldnt get my a1 to chrono any higher than around 250fps. at one point i literally turned the velocity all the way out and just could not get it any higher than around 230-250...

im using joy rage settings, pressures are 275 or so and 59.

any thoughts on how why this would be and what problems i should be looking for? I really don't think the gun has more than 10 cases through it.

thanks in advance for any thoughts.

The good doctor has given me some good advice on the nation. could be a mini-reg mod that was done by a previous owner or a few other things. ill update if i find anything ...
if anyone has any other thoughts let me know.

thanks.

[-XF-Chimp]

Faulty chrono, could also be the problem.

[Backman]

Teammate had the same problem...turned out to be the reg on the tank. Did you try different tanks? His reg had screwed up and switching tanks was the fix until he was able to get the reg rebuilt on his tank.

[HurtsDonut]

its dark out now so i wont be able to test it tonite, but what i did find was the shim stack on the minireg was not stacked properly according to the manual. I fixed it and i'm pretty sure thats going to solve the problem.

At least now i dont have to have the velocity adjuster backed out so far its flush with the gun just in order to hit 270. so thats always a good sign. \

again, credit goes to dr. strangelove on this one.

[sonny7]

If it doesn't work, it could be that it needs a rebuild.