Decocking bt4

[Sam-McDermott]

Hi I've got a bt4 slice, I've used it a couple of times and when I start running and shooting the gun sometime decocks it's self,and for some reason always happens when some one is approaching so by the time I've re cocked the gun I'm shot out, is there anything wrong with the gun
Also does anyone know if a zero kick hammer will fit into the bt4 slice?

Thanks

 

[Alex R]

How much air is in your bottle?
Is the bottle fully wound on to the asa?
What does the Marker register on the Chronograph?
Is every thing in side clean and lubed?

 

[Sam-McDermott]

The site I have been to fill it to 3000

The bottle is fully wound on

I can't remember what it's on the chronograph

Everything is clean and lubed

 

[Alex R]

There are various reasons for Markers like this going down, lack of air which can be caused by over adjusting the velocity screw (stops flow of air I think on BT's) or the bottle not been fully on, also try winding the bottle off a touch to see if that makes any difference, some times the bottle been screwed fully on can also cause air starvation, I've heard of people putting a bottle oring in the ASA, never had to do it my self though. Also dirt on the bolt can cause friction and stop the bolt re-cocking, same with the hammer

 

[Sam-McDermott]

Cheers mate I will give that a try