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Brian Enos's Forums... Maku mozo!

Carmine

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Posts posted by Carmine

  1. I've often wondered regarding the actual science ( not perceived) performance of comps on Open Guns...and for that mater Ported Barrels.

    Take into account all the variables....treating it like a science.

    Calibre is in my opinion the best place to start......what are you going to shoot 9mm, .38 super ( and its variants)

    The uniformaty of the proppelent charge as to give the desired fps has to be established as to give the numbers to continue with the design of the comp.

    The bullet itself again uniformaty of all the phyisical parrameters..Wieght, Diameter, the structure of the round itself ( open base or closed) ect.

    Then comes the comp and the phyisical layout of the ports themselves...tapered walls, the actual diameter of the bullet path, the bottom of the comp ports. ( flat or rounded)..then the sheer number of ports ( and side ports also) along with the wieght of the comp.

    We've all seen guns that have heavy inefficient comps or in calibres that cant generate enough gas to work "corectly"

    Now puting it all together ( the NASA boys can do the number crunching). the bullet moving at so many fps, will only have a certian amount of dwell time where it enters the comp and for a fraction of that that dwell time will allow the gasses to venture in the comp ports and generate a thrust as the round is leaving the "first chamber" ( thrust is measued in newton meters or joules of energy)...thus compensating for the lift of the gun in recoil...and yes the recoil cycle is another part of this delicate bit of engeneering.

    So is it any wonder that there are almost as many comp styles and layouts as there are open shooters.

    Seems to me that there's a whole lot of numbers to be crunched...then again a Stradavarius is hard to replicate with just the number....but you do get closer to the truth once you , as the name sake of this forum says...Maku mozo

    Sorry for the crappy text, im fighting a wicked head cold

  2. I use the STI 126 ( Ipsc Box Rule ) mags with slanted basepads.

    I cant go over 10 rds ( Canadian Law)...so make them as reliable as possible instead.....

    Gramms intermals and adjusted feed lips.

    Extra capacity...can cost you in reliability.........just say'n

  3. SVI has a thumb rest....you have to talk to Brandon.

    I've got one on my SVI build.......I can't wait for my new gun!!

    In the mean time I have a DAA Adjustable thumb Rest on my STI Eagle ( .40)

    Here`s a picture of my current ride ;)

    post-24914-0-88918600-1348281361_thumb.j

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