I'd like more details please.
Dave
Spikes tactical, stag, daniel defence are my top choices. My m&p lower was wore out after 1000rnds. Explain? Friends bushmaster's barrel began to sag at 2000 rounds Explain? 2,000 rounds full-auto Beta-C dumps back to back, what? and I have no experience with any other brands. But I have been told that palmetto and bcm are great products.
I would put money down that, 1, clean the barrel, it'll shoot better, 2 check the sights/ scope mount/rings, somethings loose
After hearing excellent things about DSA in the field of FALs, I decided to try their AR mid-length flat top upper and I've been totally satisfied so far. I don't know if money is a concern, but they also manufacture and sell complete rifles, starting under $800, all parts Made in USA.
http://www.dsarms.com/AR15-M16--Rifles/products/10/
Be careful, ARs are addictive.
JC
My neighbor has an AR15 and you're right they are addictive. He let me shoot it once and I had so much fun. We had to stop cause we ran out of ammo. His is made by Colt, how good are those?
My DSA upper is currently mounted on a Colt SPII lower and I've had a ton of fun with it. That said, I think the new Colts may be a bit overpriced, but someone on here probably knows more about them and may be able to elaborate. My lower was handed down to me, but if I were buying a new one today, I'd probably go with something else... Just my preference though.
As far as running out of ammo goes, don't forget that you can pick up a .223 --> 22LR conversion kit and shoot all day for under a nickel per round instead of 30 to 40 cents per round!