Trigger Sear dragging on hammer

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Gazzmondo

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Is it normal for a trigger sear to drag on a hammer after the trigger is pulled.
I have a Reximex Zone and when you pull the trigger the sear disengages from the hammer as you'd expect but then is pushed up by a spring against the hammer during the forward stroke before hitting the valve, creating friction on the one part that you don't want any.
The first pic is after firing, the second is
cocked
 

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A lot of the Turkish guns use this method, the only way around is to Polish the sear/hammer and change the spring to a very weak one,
I have previously tried reliving the hammer, but it just causes more problems.
 
Tricky-Dicky said:
A lot of the Turkish guns use this method, the only way around is to Polish the sear/hammer and change the spring to a very weak one,
I have previously tried reliving the hammer, but it just causes more problems.
Click to expand...
Yes I tried polishing everything and using a weaker spring but I'm still getting a spread of 16 fps over 5 shots which to me seems excessive for a regulated gun. Maybe I'm barking up the wrong tree and it's the regulator that's inconsistent.
 
The hammer takes off so fast it doesn’t touch and sear can rest ready to latch piston when recocked, Ive never seen and signs of interference
 
32:1 said:
The hammer takes off so fast it doesn’t touch and sear can rest ready to latch piston when recocked, Ive never seen and signs of interference
Click to expand...
I hope this is the case, which must mean the regulator pressure is fluctuating to cause the inconsistent pellet speed.
 
I’ve glided, shortstroked, ptfe’d, and even bespoke Ti hammers with springs and ssg’s, just try a different pellet, check barrel and breech seal, clean hammer bore and spring fitment and try another chrono as an FiX chrono drove me mad 😂
 
32:1 said:
I’ve glided, shortstroked, ptfe’d, and even bespoke Ti hammers with springs and ssg’s, just try a different pellet, check barrel and breech seal, clean hammer bore and spring fitment and try another chrono as an FiX chrono drove me mad 😂
Click to expand...
Good shout, I've tried all those suggestions except the first ones to do with the hammer.
What sort of consistency are you getting after all that!
 
Gazzmondo said:
Yes I tried polishing everything and using a weaker spring but I'm still getting a spread of 16 fps over 5 shots which to me seems excessive for a regulated gun. Maybe I'm barking up the wrong tree and it's the regulator that's inconsistent.
Click to expand...
You're not the only one mate, my Pro 500 which is modded with a Lane bottle reg and has an SSG and was my most consistent gun with under 7fps spread had now suddenly gone to 14 to 20 fps spread, and I have checked everything and cant find the reason. :( Head bang 65
 
Gazzmondo said:
Good shout, I've tried all those suggestions except the first ones to do with the hammer.
What sort of consistency are you getting after all that!
Click to expand...

I used to chase fps consistency and realised anything around 10-15fps made no real difference to accuracy
I found shorter strokes, lighter faster hammers and springs that drive off the rear of piston clean things up a wee bit, also making sure your spring has preload if not using an SSG.
 
Yes the sear latching on to the rear of the hammer seems an obvious improvement.
Makes you wonder why some airgun designers don't think of that!
 
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