I'm in the middle of building my AR and I'm stuck whether I should go for a 1:7 or a 1:8 twist rate. I like to mix things up and shoot everything from 55gr-77gr bullets, depending on what's on sale lol. Which twist rate is better for handling that range?
.223 twist rate
- Thread starter Johnroy
- Start date
If you’re regularly shooting heavier match-grade rounds, then a 1:7 twist is great for you. But if that's not your everyday thing, it might be a bit much. On the flip side, going with a 1:8 twist gives you a bit more wiggle room. So if you ever feel like trying out some lighter stuff for varmint hunting or just some casual plinking, you’ve got that option too.
lionel_jims
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- Sep 18, 2025
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If I were setting up an AR and planning to shoot everything from 55gr-77gr, I’d totally go for a 1:8 twist rate without a second thought. It really is the most flexible choice for that range of bullet weights. You get great stability for those heavier 77gr match rounds, but it’s not so intense that it ends up over-stabilizing the lighter 55gr rounds. That’s perfect for just having fun at the range or getting in some good training.
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- Jun 29, 2025
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What barrel length are you using? I have a DPMS in 1 in 9 thats great for coyote killing out to 200 yards, but I hear you might want a 1 in 7 for longer ranges. ever been here?
https://bkingsfirearms.com/product-category/retro-complete-uppers/
https://bkingsfirearms.com/product-category/retro-complete-uppers/
I have the Sport II. If your Sport has a forward assist and dust cover, it's a Sport II.
Ps. I got mine back in 2018 for $530. Came with a Caldwell mag loader, gun case, and several mags.
