Downgrading From 420 FPS to 350 FPS Help

[Guest PT247]

AOE: Angle Of Engagement - where the gear first interacts with the piston. On a Krytac it is already pretty much sorted so you don't need to worry about it really.
How many rounds have you run through that SP100 spring? Put a 1000 BBs through it and see if it drops any. If not then maybe clip half a turn off the spring and flatten the end with heat, should knock a few FPS off it.

[Richard89]

AOE: Angle Of Engagement - where the gear first interacts with the piston. On a Krytac it is already pretty much sorted so you don't need to worry about it really.

How many rounds have you run through that SP100 spring? Put a 1000 BBs through it and see if it drops any. If not then maybe clip half a turn off the spring and flatten the end with heat, should knock a few FPS off it.

 

Nae alot yet as ive just tested it, ill try and put alot through it this weekend and see. If that fails ill try cutting the spring down, would that cause any problems with cutting it down though ?

[Guest PT247]

only if you don't finish it properly and leave the end sticking up. I clip mine half a turn at a time and heat it on a gas hob then flatten it and dremel it smooth, re fit it to the gun then test fps, keep doing so until you get the fps you are after. But do put a wedge of BBs through it first as that will help bed the spring in. If you don't and you clip it to 350fps after a few skirmish days you'll find it has lost 20fps further.