fps help

rcd67 · May 4th, 2012, 23:45

I have an echo l mtc that i put an m120 spring In and was shooting 400 fps average now it's shooting 360 . Don't under stand what happened any suggestions greatly appreciated. Shooting with .20 bbs)

CDN_Stalker · May 5th, 2012, 10:48

Nothing wrong with 360fps, it's actually the ideal velocity to shoot at. Be more concerned if it continues to drop.

Kozzie · May 5th, 2012, 11:19

If your gun is stored with the spring compressed it can weaken the spring. Always shoot your gun on semi before storing it. This will assure the best chance of the spring being fully "relaxed" while it sits between games.

Check your compression. My Echo1 had brutal compression, a few parts fixed her up right nice. There are countless benefits to having good compression.

rcd67 · May 5th, 2012, 11:55

thanks guys for the replys, havent been storing it without shooting it in semi to relax the spring, learned that from the first spring i ruined, trial an error i guess. i thought maybe it had something to do with compression, was wondering if the o ring on the piston head wasnt expanding enough on the piston head and maybe affecting my fps. saw that on a couple of reviews on the airsoft sites people changing them out for a #14 o-ring, any truth to that? want to upgrade to a m130 spring would like to shoot 400fps with a .25 going to upgrade motor and piston head, any other suggestions would be great. thanks for the help so far.

slink182 · May 5th, 2012, 12:04

Quote:

Originally Posted by rcd67

thanks guys for the replys, havent been storing it without shooting it in semi to relax the spring, learned that from the first spring i ruined, trial an error i guess. i thought maybe it had something to do with compression, was wondering if the o ring on the piston head wasnt expanding enough on the piston head and maybe affecting my fps. saw that on a couple of reviews on the airsoft sites people changing them out for a #14 o-ring, any truth to that? want to upgrade to a m130 spring would like to shoot 400fps with a .25 going to upgrade motor and piston head, any other suggestions would be great. thanks for the help so far.

That fps and weight combo will disallow the gun from most games that chrony. Chronying is usually based on a max of 400 fps with 0.20g BBs. Sniper rifles are the exception.

If you were previously referring to 360 fps with 0.25, then you should just leave it alone.

rcd67 · May 5th, 2012, 12:34

at our field 400fps is the limit doesnt matter what wieght, yes snipers are diff, trying to figure out why i lost an average 40fps from 400 to 360fps average on a .20 want to upgrade to a m130 to shoot .25s at around 400fps looking for advice on what else i should upgrade so i dont have any problems ie. {motor, piston, ect} i guess rules are different between canada and usa... thanks

Kozzie · May 5th, 2012, 17:09

400fps on .25's is NOT at all the same thing as 400fps on .2's. A heavier bb carry's more energy (joules) than a lighter bb travelling at the same speed. So although they may reach the target at the same time, the heavier bb will hit "harder" with more stored energy causing more damage. It's the whole reason for setting a speed to cronny to. There's no point having a limit if it doesn't matter what bb weight you're cronnying with? All proper fields will have a set fps limit with a specific bb weight that you must not exceed, it doesn't matter what country you're in as the laws of physics are a constant all over the planet.

The extra fps you're trying to achieve won't give you any real benefit on the field, you may achieve a bit of extra range but you will pay with your accuracy. It's not worth the extra stress on your mechbox shortened battery life etc for no real benefit. If you're looking for better range and accuracy you're far better off upgrading you compression (from piston head all the way to hop rubber) and getting a good TBB. 380ish fps on .2's is what you want to be shooting.

rcd67 · May 5th, 2012, 21:02

ok my original ? was how come i lost so much fps? what i can do to correct it there has got to be a reason, i have been in this sport for a little less than a year so i obviously have a lot to learn, gun sat all winter without use took it out last week and cronod it and was shooting 390-400fps on .20, then the next day it was very inconsistant, averaging around 360fps sometimes will drop to 320fps thats a big difference from 390-400fps so there is a problem, my fault for getting off topic with the spring upgrade getting ahead of myself...thanks

ThunderCactus · May 5th, 2012, 22:01

Compression issue, it's because you bought an echo1
You'll need to regrease everything with proper grease to ensure you're actually getting a proper seal from your piston.

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May 5th, 2012, 10:48	#2
CDN_Stalker Official ASC Bladesmith Trader rating Join Date: Jul 2003 Location: Ottawa, Ont.	Nothing wrong with 360fps, it's actually the ideal velocity to shoot at. Be more concerned if it continues to drop. __________________ STKR Knives http://www.facebook.com/#!/pages/STK...17036668380871

May 5th, 2012, 17:09	#7
Kozzie a.k.a. Greedy Trader rating Join Date: Dec 2010 Location: Toronto	400fps on .25's is NOT at all the same thing as 400fps on .2's. A heavier bb carry's more energy (joules) than a lighter bb travelling at the same speed. So although they may reach the target at the same time, the heavier bb will hit "harder" with more stored energy causing more damage. It's the whole reason for setting a speed to cronny to. There's no point having a limit if it doesn't matter what bb weight you're cronnying with? All proper fields will have a set fps limit with a specific bb weight that you must not exceed, it doesn't matter what country you're in as the laws of physics are a constant all over the planet. The extra fps you're trying to achieve won't give you any real benefit on the field, you may achieve a bit of extra range but you will pay with your accuracy. It's not worth the extra stress on your mechbox shortened battery life etc for no real benefit. If you're looking for better range and accuracy you're far better off upgrading you compression (from piston head all the way to hop rubber) and getting a good TBB. 380ish fps on .2's is what you want to be shooting. Last edited by Kozzie; May 5th, 2012 at 17:13..

May 4th, 2012, 23:45	#1
rcd67 Trader rating Join Date: May 2012	fps help I have an echo l mtc that i put an m120 spring In and was shooting 400 fps average now it's shooting 360 . Don't under stand what happened any suggestions greatly appreciated. Shooting with .20 bbs)

May 5th, 2012, 11:19	#3
Kozzie a.k.a. Greedy Trader rating Join Date: Dec 2010 Location: Toronto	If your gun is stored with the spring compressed it can weaken the spring. Always shoot your gun on semi before storing it. This will assure the best chance of the spring being fully "relaxed" while it sits between games. Check your compression. My Echo1 had brutal compression, a few parts fixed her up right nice. There are countless benefits to having good compression.

May 5th, 2012, 11:55	#4
rcd67 Trader rating Join Date: May 2012	thanks guys for the replys, havent been storing it without shooting it in semi to relax the spring, learned that from the first spring i ruined, trial an error i guess. i thought maybe it had something to do with compression, was wondering if the o ring on the piston head wasnt expanding enough on the piston head and maybe affecting my fps. saw that on a couple of reviews on the airsoft sites people changing them out for a #14 o-ring, any truth to that? want to upgrade to a m130 spring would like to shoot 400fps with a .25 going to upgrade motor and piston head, any other suggestions would be great. thanks for the help so far.

May 5th, 2012, 12:34	#6
rcd67 Trader rating Join Date: May 2012	at our field 400fps is the limit doesnt matter what wieght, yes snipers are diff, trying to figure out why i lost an average 40fps from 400 to 360fps average on a .20 want to upgrade to a m130 to shoot .25s at around 400fps looking for advice on what else i should upgrade so i dont have any problems ie. {motor, piston, ect} i guess rules are different between canada and usa... thanks

May 5th, 2012, 21:02	#8
rcd67 Trader rating Join Date: May 2012	ok my original ? was how come i lost so much fps? what i can do to correct it there has got to be a reason, i have been in this sport for a little less than a year so i obviously have a lot to learn, gun sat all winter without use took it out last week and cronod it and was shooting 390-400fps on .20, then the next day it was very inconsistant, averaging around 360fps sometimes will drop to 320fps thats a big difference from 390-400fps so there is a problem, my fault for getting off topic with the spring upgrade getting ahead of myself...thanks

May 5th, 2012, 22:01	#9
ThunderCactus Not Eye Safe, Pretty Boy Maximus on the field take his picture! Trader rating Join Date: Feb 2007	Compression issue, it's because you bought an echo1 You'll need to regrease everything with proper grease to ensure you're actually getting a proper seal from your piston.

fps help

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