i"m not sure what the spring rate is but we preload the springs about 3/4" and they are compressed 2 1/4" due to the firing. if this helps the spring is 6 1/4" long .275 OD and the wire diameter is .035
also our firearm is designed not on a gas system but a delayed roller system it uses the pressure from the round going off to drive the bolt back words.
I hope i can explain better,
the item Wt. is 210 grams the maximum travel is 2 1/4" it travels in a strait line.
We are a Firearms Mfg. we have a semi auto bolt when fired it travels the 2 1/4" we are trying to regulate the speed of our sub machine. when we do not regulate the cyclic rate it...
Hello, sorry if i do not ask the question correctly but any help would be great.
i need to find the speed of an item and I'm not sure what i need to find this out?
well a cyclic rate of this item?
Thanks