Originally Posted by Jack23
I have just bought 1100 rounds of .223 55gr fmjbt ammo for my Colt Aro-15. Now I'm hearing that boat tail ammo is "hard" on the barrel. The chamber and barrel of this AR are chromed. Should I not use this ammo? About how many rounds of this Ammo would I have to run through it before I need to worry about permanent Damage.
I'm fairly concerned here and would surely appreciate any info I can get on this ammo and how it will affect my gun. Thanks a bunch in advance!
The information you have recieved is worth less the time it took you to type it. Disregard it, enjoy your weapon.
What IS hard on the barrel is rapid-firing of the weapon. This will increase throat erosion. A good rule of thumb is not to get the barrel any hotter than to where you can stand to grab/hold onto it with your bare-hand. That being said, cooking the CLP off your barrel half a dozen-times probably won't hurt a darn thing. Been there, done that, and with A2 sights and M855 ammo and a gov't profile barrel I still pulled 2.25 MOA 5-shot groups out of the rifle I was using (Sabre Defence, A2 configuration).
Further, yes, you can shoot wolf steel-case ammunition, just clean your chamber with a chamber-brush before shooting brass ammo again, or you will get FTE's. There is a reason for this that can be explained, but the simple, stupid version is that steel cased ammo allows more carbon into the chamber--scrub it out.
The polymer will not melt in your chamber. The laquer will not melt in your chamber. You MIGHT get short-strokes until the weapon is broken in. Short-strokes with Wolf, especially on a carbine-length of midlength gas-system when using Wolf are indicative of non-optimal function, imho. Many people will say otherwise, but I have never owned an AR-15 (especially one with a chrome-lined chamber) that when properly cleaned/lubed/broken-in, would not reliably fire Wolf Military Classic 55gr ammunition. It is what I use as a diagnostic tool, as it IS on the cusp of being non-functional, it will highlight any binding or gas-leaking. However, one thing it will not do is wear out your AR-15.
Do not use graphite-based dry-lube, or any dry lube for that matter. Use oil type lubes--and lots of it. The BCG should be wet. THe wetter the better, EXCEPT in an arctic environment. Yes, this means that in Iraq, in that sugar-powder sand, you should run the BCG WET. Not dry.