In this Tech Tip Brownells gun tech Steve Ostrem explains AR-15 twist rates, ideal bullet weights, and their applications. Learn more here
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16” 1:7 twist is perfect
So if I want to use a conversation kit for .22 lr higher twist rate barrels are better when hunting rabbits
Thanks
Overwhelmingly, 5.56/.223 is sold in 55 & 62 grain, so why are most barrels sold in 1:7 twist rate?
Brownells does not warranty their products sold thru Optics Planet
Great video. I love Brownells
Seems that 1 in 8 twist is pretty optimal for shooting 55 grain to 75 grain bullets. 1 in 7 tends to be overkill for 55 grains. I've seen good results with 1 in 9 inch twist too for a variety of projectile length.
Seems to me you just get a certain grain stick to it zero your rifle to it and everything will be fine I've never fired anything except for a 55 grain and it's always panned out excellent.
does shooting boattail ammo change the optimum twist rate?
How are twist rate and barrel length related? Do you need a faster twist for a shorter barrel and slower twist for a longer one ?
1/10 is also a common rate today
Can you please do this video but for AR 10s
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Brownell Tech Tips
Both interesting, but very different
77 is the biggest that will fit into a magazine so this is still misleading information. The 1-9 is able to shoot the 77 grain. That is why we chose these years back because of it being accurate with all ammo grains. The AR twist chart isn’t needs adjustments in my opinion. . 1-12 twist is a rare twist rate in my opinion too. Maybe in the longer gas systems?
With the 3 different twist rates, 1:7-1:8-1:9 is there a chart to show the difference in the actual barrel hole size??
Всё равно хлипчеватей Калашмата выглядит, хотя качество зайбатое.
Short and right to the point. Thank you I have learned a lot today.
Does barrel length make a difference when it comes to twist?
where can I get the hat that the guy on the range has?
The point about SS109, even though it's 62 gr, being different than steel-free 62 gr seems to be something that is neglected in twist rate discussions in messageboards.