The Rohrbaugh Forum
Rohrbaugh Products and Accessories => Cleaning and Maintenance of the R-9 => Topic started by: Reinz on July 31, 2011, 06:28:03 AM
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Ok, I pull the recoil spring out of a gun with supposedly less than 100 rounds and put in a new one.
I fire 30 rounds and pull the spring to measure and compare and here is what I found.
Brand new spring - 1.55 in
used - < 100 rds - 1.284 in
( I think much more)
replacement
w/ 30 rds - 1.257 in
Now that 30 round spring lost almost 1/3 of an inch. From previous posts in the past, some guys would freak out at that loss and replace it.
I'm sure someone smarter than me will chime in, but I sticking to my original story that it is not all about length, but compression as well.
Who knows, maybe those springs do a rapid compress after the first mag, then slowly compress afterwards.
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Reinz,
I have not followed similar posts to the one you just made. I am no expert either. I have been to some manufactures armorer schools. There I was told the change in overall length of a recoil spring is not the major concern. It is ability of the spring to resist compression that is important. So long as the spring was made with in specifications; the round count is what should dictate its replacement.
My thought is shoot it, count it, replace it, and ENJOY IT!
Robar233