Chrono or don't chrono?
Chrono or don't chrono?
My latest TX seems to have a not so tight piston seal. I can cock the gun and bring the comp. tube back up, then I put a finger over the transfer port area and bring the lever back down a bit. This normally builds pressure on the finger tip. This gun builds no pressure, but I can feel suction when I pull the lever back up. I would usually just drop in a seal at this point. Only thing is, this gun shoots so accurately I think I should just leave it for a while. I decided not to chrono because we have no legal limit and I will only be frustrated if the velocity has a large spread. By the number of clicks needed at 55 yards, the gun should be dead on 800 fps with Exacts 8.44 gr. A little hot for you guys, but okay over here.
- Blackbaronfish
- Posts: 3691
- Joined: Sun Feb 15, 2015 6:20 pm
- Location: Nuneaton
Re: Chrono or don't chrono?
I think your right not checking as it will drive you mad. MY cometa is a bit erratic but shoots on the money
BBF


BBF
Did I mention that I'm the only one to have attended EVERY meet since we started
Re: Chrono or don't chrono?
I guess you can strike the, don't change the seal part. I changed it and found that it is even better. It is smoother and there is less firing noise from the action.
Re: Chrono or don't chrono?
hi buddy
as the old saying goes,( if it aint broke,dont fix it)
regards
Davy
as the old saying goes,( if it aint broke,dont fix it)



regards
Davy
did i mention,i have done one less meet then Ray, lol.
Re: Chrono or don't chrono?
I could hear a faint ring at the end of the shot. It was a deeper sound than something like a safety spring, and that's what made up my mind. The ringing sound is gone and the gun feels much softer to fire. I can tell the seal is much tighter when I return the cocking arm after cocking. My 55 yard clicks are still the same, so I guess I lost no velocity from drag. My have picked up enough from the old seal leaking a bit to equal things out. I'm now down to 1 Haccari Apex seal in the softer blue material.
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