Auto-Trigger Issue

[Handy]

I'm going to double check and compare to my other frame, but having an issue with the timing on my primarily CCM pump build. I had the same frame/AT cam on an Orracle body, and now on a Blizzard body and both are experiencing the same issue. Had an Inception hammer on the Orracle, but a CCM hammer in the Blizzard and both setups had an issue with the auto-trigger dropping the lug too early (about 1/4" to 1/2" before the back block closes). The lug is as low as possible before it starts binding in the body, which is WAY lower than I feel I've had to go on other guns.

Since it's the same pump kit, would the pump arm length cause that kind of issue? Does the under-travel screw effect that engagement? The pump arm seems to match the length of another CCM kit I have, but if there is a measurement I can compare it to, that would be useful.

Thanks in advance for the help.

[iamthelazerviking]

Pump arm length or how the cocking rod is set are the only things that come to mind.

[Handy]

Maybe I'm missing something, but is there something other than making sure the bolt clears the breech you can adjust via the cocking rod? I don't imagine that would effect anything on the forward motion of the pump handle.

[Cdn_Cuda]

The amount your pump rod is screwed into you pump and your back block can play a bit of a role, effectively changing the length of your pump arm.

[Handy]

Spent some time playing with it, and another frame I had.

I should have changed one thing at a time, but, despite the parts looking near identical, one trigger/sear combo sits lower in the frame than the other. I also backed the pump arm out of the handle a few turns and into the back block a few turns and it seems to be firing when it should now.

The lug still seems very low, but once I get another auto trigger cam, I'll have to see if it causes problems on that frame.