as predicted --
now that the 'crunch' is in full swing --
the mall ninjas who thought all "steel cased ammo is crap" have changed their tune.
i wounder how many colts who are 'built for battle" and not a range toy are getting their gas ports opened up to run that crap wolf/tula right now?
you don't see the ninjas pulling out that "god chart" much anymore either , or saying they shoot 40,000 rounds a year on training--LOL
an el-cheapo SMG barrel and model 1 bolt can probably shoot all the ammo they got and then some and not even be worn--
i think our colt m4s got their barrels pulled @ around 6,000-7,000 rounds mostly due to throat erosion . we had quite a few of those MPI colt "god bolts" snap too.
at that time it seemed that colt was making the bolts extra hard to meet some obscure 50,000 round wear rule for m193. that didn't go over all that well in the m4s firing mode "0"--
so we rotated bolts and barrels like you change oil in your PU.
don't ever tell a ninja that though or you'll be banned for 'dissing' the god chart--LOL!
one mystery about the old ar/m16 to me is why some of them will run with that small .063 gas port and low pressure wold/tula ammo and others with the exact same set up need a bit more port.
my lmt 16" needed a tiny bit more, the LMT 14.5" no problem with the .063, i don't know what the DSA 14.5" has--but whatever it is --it sure runs good.
all the ninjas want you to know that if you open up a colt .063 port to a .078 to get it to run--you have just 'bubbaed up" that colt and are now an outcast--LOL