Originally Posted by
RetreatHell
When using a particular batch of Wolf 55gr ammo, I had some short stroking issues that resulted in a few failures to feed with my SR-15. It would very weakly eject the spent casings, and would randomly short stroke and I'd get a "click" instead of a "bang" on an empty chamber. No biggie, I just switched to my PMC 55gr, which a lot of people believe to be pretty weak ammo, and it was fine after that.
So it's definitely possible he was using weak ammo that would cycle properly in his SR-15, but when he used the same ammo in his other carbine that (most likely) had a larger gas port, it cycled fine in that one.
When the Assistant Instructor tried troubleshooting, did he use the shooter's ammo or did he insert one of his personal mags with his personal ammo and attempt to fire off a magazine?
If I was told correctly by someone I trust much more than most, the SR-15 has a slightly smaller gas port, which (among a few other things like the longer than mid-length gas system and E3 bolt) causes it to recoil much less and smoother than other 16" carbines, even other 16" mid-length gas systems. So if you're running VERY weak ammo through it, it could have some issues. But personally, out of all the ammo I've fired through mine, I only had problems with that one batch of Wolf 55gr ammo.
I've only fired a little under 3,000 rounds through my SR-15 E3. But just a few weeks after I bought it, with only around 250 rounds fired from the bench at my local range, I ran it through my first carbine course. This was last August and it was hot as hell out! I ran my SR-15 hard as **** in that 2-day class and fired around 1,000 rounds total (I had to sit out a few drills to hydrate and avoid heat exhaustion because my lower body cannot sweat so my upper body sweats twice as much). The gun would already be so hot just from the sun alone, requiring me to wear gloves before I even fired it. And I was firing extremely rapid during the drills, thanks to the crazy soft recoil and triple tap brake which allowed me to fire so fast and maintain much better accuracy than my fellow students who were firing at half the rate I was.
Needless to say, my new SR-15 completely won me over that weekend and I was simply blown away by its performance in such a hot and moderately dusty environment.