Pewpewpetie Posted September 13, 2019 Share Posted September 13, 2019 Hi to all, I have a specna sa-e13 and just sorted compression issue out and is now firing at 349-353. I removed the spring and cut 1 1/2 loops off and smoothed and flattened end so it sits right. Ruffly how much fps should I drop as I cannot chrono now untill game day. My local site is 350fps on aegs. And I'm hoping to be just under 340/345 now. I quite new to this so if it's a stupid question I apologise in advance. Link to comment Share on other sites More sharing options...
Stevo4345 Posted September 13, 2019 Share Posted September 13, 2019 I have a Specna SA-E04 and did the same to an M100 spring I re-fitted, was shooting around 370 fps and I cut 1 1/2 turns off it and it's right around 335-340 now. You should be well under the limit, being that close you might have tried fully compressing the spring to take the edge off it but it's been cut already. I would guess it'll be 320 ish if you're on the same chrono you checked with last time. Link to comment Share on other sites More sharing options...
Supporters Rogerborg Posted September 13, 2019 Supporters Share Posted September 13, 2019 Agreed, lopping off just a couple of turns can take a big chunk off of your fps, because Link to comment Share on other sites More sharing options...
Supporters Samurai Posted September 14, 2019 Supporters Share Posted September 14, 2019 In an average AEG cutting one coil reduces the fps by 15-20 in my experience. Plus the flattening of the end also practically removes a coil. You'll be around 300fps I think. Link to comment Share on other sites More sharing options...
Sneaky Posted September 15, 2019 Share Posted September 15, 2019 I would rather buy a bunch of springs instead of cutting them. Partly cos I can’t be bothered, but also in future I’m bound to have more RIF in the future, so having loads of springs which perform at said fps I would say is a better option. Also sprin do not cost much. Link to comment Share on other sites More sharing options...
Pewpewpetie Posted September 16, 2019 Author Share Posted September 16, 2019 On 13/09/2019 at 20:14, Stevo4345 said: I have a Specna SA-E04 and did the same to an M100 spring I re-fitted, was shooting around 370 fps and I cut 1 1/2 turns off it and it's right around 335-340 now. You should be well under the limit, being that close you might have tried fully compressing the spring to take the edge off it but it's been cut already. I would guess it'll be 320 ish if you're on the same chrono you checked with last time. Took it out Sunday and chronoed at 345/347. Thanks for the reply Link to comment Share on other sites More sharing options...
Supporters Rogerborg Posted September 16, 2019 Supporters Share Posted September 16, 2019 Winner! I bet that was a good feeling. Link to comment Share on other sites More sharing options...
Stevo4345 Posted September 17, 2019 Share Posted September 17, 2019 That's what they call 'Right on the Money'! Link to comment Share on other sites More sharing options...
Pewpewpetie Posted September 18, 2019 Author Share Posted September 18, 2019 On 16/09/2019 at 18:04, Rogerborg said: Winner! I bet that was a good feeling. Yes, couldn't be happier Link to comment Share on other sites More sharing options...
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