Rate of Fire
Entry posted by Guest ·
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For a while now I've been including Rate of Fire (ROF) as Rounds Per Minute
figures on the reviews I do of select fire guns.
The way I do this is documented somewhere on the forum, but I can't find it, so I'll describe it.
Basically, I connect a microphone to my PC and fire up the excellent freeware program Audacity, which is available on Linux and Windows (probably Mac, too, if you must 
).
I then load up the gun and, holding the slide lock down, rattle out a few seconds of shots.
Audacity produces an output very like that of an Oscilloscope (some clever bods going to tell me it isn't, but to a simple soul like me, that's what it looks like - See image below..)
With this, it's pretty easy to count the number of shots (as peaks) per second and extrapolate that up to Rounds Per Minute (RPM).
Through testing, I found that the dry firing doesn't make any significant difference to the ROF (as I feared it may) and I've listed ROF figures for quite a few guns on my website.
What's provoked this blog post (besides it being idle for a while) is my acquisition of a 'classic' MGC Glock 18.
My experience of 'classics' is that they tend to look good, but be a bit of a disappointment performance wise.
FPS wise the Glock's nothing special, but my testing produced figures of 24 shots per second, around 1450 rpm!
This is WAY above anything I've tested before (AEP, AEG or GBB - the chart above shows the GBB Skorpion at 870rpm) and that's just with 134a gas!
I've not yet written the review, but if you want to hear it, you can download a WAV file at : http://www.justpistols.co.uk/g18mgc_short.mp3 and compare it to my ICS MP5 http://www.justpistols.co.uk/mp5sd5_short.mp3.
It amazed me, but it seems that some of the old dogs can teach new tricks...
Cheers.
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