gunsmithshep

unprofessional armorer. don’t follow if under 18. be prepared to see furry shit that I like if you follow me. profile picture by @hayden_fencfoxo

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ If it’s combat life saver, every infantry marine I know who took it, shot pigs, army guys shot goats

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ Never got that response. I’m not in the military. Autism prohibited it. I work on agency and Leo guns as well as civilian

[gunsmithshep @GunSmithShep]

@TacDexx Marines are typically the gayest straight people. Wonder if it’s inverted

[gunsmithshep @GunSmithShep]

@sethrotull372 @Ark_T0ast_ @NaviGoBoom Imagine being dumber than a furry

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ Also CSL wow, you shot pigs or goats and put a tourniquet on it. Good job

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ I don’t care what the military pats you on the back with, I’ve seen and out shoot “experts” at matches all the time. You don’t know technical data packs, or pressure

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ Again the longer free bore and throat was not made for pressure difference between m193 223 Remington and m855/m856 when nato adopted it. Because there isn’t. Both operate at 55k psi (saami reading) or 58k psi (cip) with max pressure of 556 being sub 60k psi while 223 is 62k

[gunsmithshep @GunSmithShep]

556 nato is a specific load and variation of 223 Remington. All “556” guns are 223 Remington. Case dimensions differ brand to brand. And most comercial 556 isn’t even loaded to nato pressure. Colt SP1s and m16a1s predate 556 nato and handle 556 pressure all the time. The 1:12 twist just won’t stabilize a 62gr m855 or m856 which are the only true 556 nato

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ Saami has zero authority over a nato cartridge. They don’t control pressure or regulate it.

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ I’ve seen it in the past. Take an armorer course and get back to me

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ I’ve watched it, reamed chambers and build guns and measured these chambers. I know more than you do. You need to learn the difference between epvat, saami, and CIP and realize there is no pressure difference.

[gunsmithshep @GunSmithShep]

Saami doesn’t dictate or control 556 therefore they can’t advise anything. 556 nato is a nato factor, that is measured with epvat, which measures the case at the mouth. Saami measures chamber pressure in the middle of the cartridge, measure the same round in both those spots and you’ll get two different pressure readings

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ I’ve read what you said. What you’ve said is incorrect. 223 Remington guns are capable of handling pressures of 70k psi. 556 nato is 58k psi, 223 Remington has a max normal pressure of 62k psi. Again. use CIP pressure metrics to compare them

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ 223 was specifically designed by Remington at the request of armalite for the SCHV program in the 50s, they based it off of 222 Remington but bumped the bullet to a higher weight, higher pressure etc this was specifically for the military during the trials for the AR15

[gunsmithshep @GunSmithShep]

The bullets are completely interchangeable, it’s not tighter barrels, it’s a shorter free bore. The longer free bore was done because of 62ge m856 tracers having a longer base to ogive and to allow more deviation. Not pressure. Look at original m16 and m16a1 barrels. They have the modern equivalent of 223 chambers because they predate 556 nato. Nothing to do with pressure

[gunsmithshep @GunSmithShep]

@BumpyBeatz @HakureiRyan @Able_One_ A 223 gun made in the 50s was built to handle the pressure of modern 556, and excess, they are proof tested to 70k psi, 556 nato and 223 Remington both operate at same pressures. With 223 having the higher max pressure of 62k when measured with cip

[gunsmithshep @GunSmithShep]

@sethrotull372 @Ark_T0ast_ @NaviGoBoom Well, considering you don’t know that 223 is actually the higher pressure cartridge 62300 psi (cip) vs 58k psi 556 (epvat) regardless of 223 guns being proof tested to withstand 70k psi and don’t know where saami measures pressure at, I don’t think you have much room to talk

[gunsmithshep @GunSmithShep]

@sethrotull372 @Ark_T0ast_ @NaviGoBoom Do you know what sammi epvat or cip is? If you did you’d know what max pressure is allowed, normal operating pressures and what proof pressure is

[gunsmithshep @GunSmithShep]

Mas 49s and hakim rifles both have gas expansion areas, it’s not dumped, gas enters a pocket, expands, and forced the carrier rearward opening the expansion chamber to vent gas. Just how the AR15 does, gas should not be leaking out of the rear of the carrier on an AR, just out the side vents