There's points of equilibrium and all the potential energy stuff that coincides with gravity, weight, friction, air resistance, ect...
In the end, I guess none of it matters![]()
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There's points of equilibrium and all the potential energy stuff that coincides with gravity, weight, friction, air resistance, ect...
In the end, I guess none of it matters![]()
Muzzle punch optional.
Just buy colt USGI springs and never look back.![]()
"You people have too much time on your hands." - scottryan
Owner/Instructor at Semper Paratus Arms
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Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com
What more do you need to know?
(Credit to whoever made this originally, I just find it handy.)
The dreaded chart rears its head...
Black River Tactical
BRT OPTIMUM HFCL Barrels - Hammer Forged Chrome Lined 11.5", 12.5", 14.5"
BRT OPTIMUM Barrels - 16" MPR, 14.5" MPC, 12.5" MRC, 11.5" CQB, 9" PDW
BRT EZTUNE Preset Gas Tubes - CAR and MID
BRT Covert Comps 7.62, 5.56, 6X, 9mm
BRT MarkBlue Gas Tubes - BRT EXT, EXC and PDW Lengths
BRT MicroPin Gas Blocks - .750" & .625"
BRT MicroTUNE Adjustable Gas Blocks
BRT CustomTUNE Gas Ports
Last edited by rsilvers; 12-08-11 at 19:18.
Didn't know that chart would get people roused.
Carry on.
thanks for the link, that's pretty much what I wanted to know.
Has nothing to do with case ejection or anything of the sort, as my inquiry has nothing to do with 5.56 or the operation of the AR-15/M4 in any capacity.
I have a custom build in the works, for which the spring rate needed to be known in order to continue with forward progress. It is critical the spring rate not be above a specific number and from the data listed it looks like it will work.
I'm not going to say what or why, but more details will be available as the build is completed.
Last edited by Reagans Rascals; 12-08-11 at 20:28.
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smoke and drink and screw..that's what I was born to do.. - Steel Panther
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