[JordyJay]

Hey everyone,

I recently upgraded my TM VSR-10 with these parts:
Action Army Cylinder
Action Army Hop Up Chamber
Action Army Spring Guide
Action Army M150 Spring
Action Army Zero Trigger
Action Army Inner Barrel 6.03
Maple Leaf 70° Bucking
Maple Leaf Nub Tensioner

Now my VSR-10 shoots 550 FPS, and I'm only allowed to shoot 500 FPS, so I need to cut my spring. I know my spring will lose some energy after a while, but I'm not quite sure how much FPS it'll lose.
And I've no clue on how much FPS I'll lose when I cut 1 coil, so how many coils do you recommend me to cut?

Thanks!

Kind Regards,

Jordy

 

[Yankee0]

In a nutshell, give the spring a few weeks or so inside the cylinder plus a fair few rounds through it to let it settle, then cut one coil at a time, reassembling and checking the fps each time. Will probably be 1-2 coils off at a guesstimate but worth doing it a coil at a time to be sure.

For a more indepth view on the subject I would reccomend 1tonnes guide found on his signature titled 'Choosing the right spring and making it work' but for the life of me I can't seem to insert a link, think its my stupid phone.

Hope this helps,

Cheers, Y0

P.s I think its good form to post an intro in the new members section if you haven't already.

 

[DillSS]

No, do not let a new spring settle if you plan on cutting it.

If you do, when you cut it, there will be a gap inside the cylinder and piston and whatever.

AA springs are good. Mine at least a year old and only lost 10 fps.

Cut 2-3 coils.

 

[JordyJay]

Thanks for the info guys! I'll be introducing myself in the new members section soon. I'll start this week with cutting the coils and I'll let you guys know

 

[Yankee0]

Apologies for disagreeing Dills but if his goal is purely to get under 500fps, wouldn't letting the spring settle first, then cutting it if needs be to reduce fps fulfill his goal?

 

[Scharfschutze]

I would do what Yankee said. Settle the spring and cut it, otherwise you'll cut it and then it will settle after that and you'll lose too much FPS. There shouldn't be a gap as the spring is plenty long.

 

[Scharfschutze]

My spring is settled and uncut and still sticks out of the cylinder a few coils at least.

 

[JordyJay]

I removed three coils today. With the Hop-Up completely turned on I got an average of 496 FPS. This way I'll pas the chrono test. With the Hop-Up in the right position, I think the FPS is about 510. So that will be about 500FPS once the spring has settled

 

[Scharfschutze]

That works!