General question: Low FPS

Brockavich · September 26th, 2010, 05:55

Very simple question for you all. It seems my guns and especially my MP7 have been shooting rather slowly lately. The TM Mp7 is supposed to shoot around 250 FPS. I chrono'd it today at 200 FPS. So obviously, something ain't right.

Please, tell me, what could be wrong with my gun? What kinds of maintenance could I preform to bring it closer to the proper FPS?

Thanks!

Amos · September 26th, 2010, 12:55

Spring could have been left cocked, piston head could not be sealing properly, torn hop-up rubber, one of your gears may be missing a tooth.

There's alot that can go wrong.

Brockavich · September 26th, 2010, 17:08

Hmm... Okay well I'll try to open the thing up and get pics put up on here and if anyone could point out anything that looks like trouble that would be wickednice. Unless of course its obvious because my gears look like melted shit D:

oniwagamaru · September 26th, 2010, 18:59

what bb weight r u using?

Brockavich · September 27th, 2010, 17:18

0.2s... The thing should be doing at LEAST 230ish with a full battery

Ninja_En_Short · September 27th, 2010, 17:52

As Amos said you can't tell anything unless you open the GB.

Another important point : clean the barrel, as weird as it sounds to some, a dirty barrel can reduce the fps dramatically... to the point where BB actually fall out the barrel...

Mitchell12 · September 27th, 2010, 18:01

Also, your battery wont change the velocity of your gun.

Brockavich · September 29th, 2010, 22:26

Okay I'll clean the barrel, then open the thing up and see if I notice anything glaringly obviously bad and take pics and put em up here...

What do you use to clean the barrel... cleaning rod with some cloth and then some silicone oil right?

Ninja_En_Short · September 29th, 2010, 23:33

Yep, don't force the cleaning rod through the hop up though.

Kos-Mos · September 29th, 2010, 23:57

Don't silicone oil after cleaning... that is against the point.

You can drop a little on the cloth before the first swipe to help disolve dirt in the barrel.

And an MP7 internal is a PAIN to work. Really.

Plus, the way they are built, there is to be some extreme wear on the nozzle over a short time. Nothing can be done against it, it is the way the gun is built. Even worst if you have some clone.

Home	Forums	Register	Gallery	FAQ	Calendar
Retailers	Community	News/Info	International Retailers	IRC	Today's Posts

British Columbia	Alberta
BCAC	EAR
Op-For	JOC
Northern Arms Airsoft	Skunkworx Airsoft
Airsoft Kelowna	RAAT
Prince George Airsoft	Manitoba
Saskatchewan	MAA
SK Airsoft	Ontario
PDW	Airsoft Ottawa
South Sask Mercs	Snow Dragons
Quebec	1st Ranger Platoon
PQAC	Wolfpack Tactical
1st Pathfinders Regiment	TTAC3
Quebec Airsoft
MTX Airsoft	Atlantic
FAQc	Atlantic Airsoft

September 26th, 2010, 05:55	#1
Brockavich Trader rating Join Date: Jan 2009 Location: Winnipeg, MB	General question: Low FPS Very simple question for you all. It seems my guns and especially my MP7 have been shooting rather slowly lately. The TM Mp7 is supposed to shoot around 250 FPS. I chrono'd it today at 200 FPS. So obviously, something ain't right. Please, tell me, what could be wrong with my gun? What kinds of maintenance could I preform to bring it closer to the proper FPS? Thanks! __________________ Let's get out and pew pew!

September 26th, 2010, 12:55	#2
Amos Trader rating Join Date: Aug 2006 Location: Japan	Spring could have been left cocked, piston head could not be sealing properly, torn hop-up rubber, one of your gears may be missing a tooth. There's alot that can go wrong. __________________ Custom Builds: FA3674U Krinkov G3SD6

September 26th, 2010, 17:08	#3
Brockavich Trader rating Join Date: Jan 2009 Location: Winnipeg, MB	Hmm... Okay well I'll try to open the thing up and get pics put up on here and if anyone could point out anything that looks like trouble that would be wickednice. Unless of course its obvious because my gears look like melted shit D: __________________ Let's get out and pew pew!

September 26th, 2010, 18:59	#4
oniwagamaru Occifer Trader rating Join Date: Oct 2008 Location: Some hole in the middleo' nowhere	what bb weight r u using? __________________ Is you Morgan Freeman? Lord_SEX is my Lord... Sex Beef Jerky Dealer? REGULAR GUY Certified Level 34 Autosniper *μολών λαβε*

September 27th, 2010, 17:18	#5
Brockavich Trader rating Join Date: Jan 2009 Location: Winnipeg, MB	0.2s... The thing should be doing at LEAST 230ish with a full battery __________________ Let's get out and pew pew!

September 27th, 2010, 17:52	#6
Ninja_En_Short Trader rating Join Date: Jul 2007 Location: France, Canada (Montréal)	As Amos said you can't tell anything unless you open the GB. Another important point : clean the barrel, as weird as it sounds to some, a dirty barrel can reduce the fps dramatically... to the point where BB actually fall out the barrel... __________________ Tous les jours nous nous endormons plus instruits mais pas forcément moins bêtes... I can do a CTRL+ATL+DEL on your gun ! Gun doc in Montreal on AEG, GBB, GBBR and Bolt rifle (gaz and spring) Heavy custom builder (including painting)

September 29th, 2010, 22:26	#8
Brockavich Trader rating Join Date: Jan 2009 Location: Winnipeg, MB	Okay I'll clean the barrel, then open the thing up and see if I notice anything glaringly obviously bad and take pics and put em up here... What do you use to clean the barrel... cleaning rod with some cloth and then some silicone oil right? __________________ Let's get out and pew pew!

September 29th, 2010, 23:33	#9
Ninja_En_Short Trader rating Join Date: Jul 2007 Location: France, Canada (Montréal)	Yep, don't force the cleaning rod through the hop up though. __________________ Tous les jours nous nous endormons plus instruits mais pas forcément moins bêtes... I can do a CTRL+ATL+DEL on your gun ! Gun doc in Montreal on AEG, GBB, GBBR and Bolt rifle (gaz and spring) Heavy custom builder (including painting)

General question: Low FPS

Doctor's Corner