this post was submitted on 03 Jul 2025
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I'm looking into getting an AR-15, this would be my first firearm. I'm wondering if I should be worrying about what brand of ammo I choose to purchase, will it affect how quickly the barrel becomes dirty etc?

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[–] [email protected] 0 points 1 week ago* (last edited 1 week ago)

I generally like PMC, the 55 grain XTAC is what I stock up on, though I've heard some claim that it's a bit underloaded.

Magtech is pretty alright.

Overrun ammo from Lake City is probably the best bulk ammo, but it's hard to find with so many conflicts going on.

The commercial Winchester stuff is a little dirtier and has an occasional bad primer but it's not horrible. I tend to stay away from this unless there's nothing else.

I've used IMI years in the past and thought it was dirtier than most. I would never buy it again for other, obvious reasons.

I would prioritize accuracy and reliability in your rifle (EDIT: and price!) over how much fouling it produces (the AR-15 can take quite a bit of fouling). This requires testing on your end to determine.