Posted: 7/3/2008 8:12:36 AM EDT
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I'm currently thinking of getting a standard 20" A4, but was wondering if there was any option for a better twist without going stainless. I'd like to have the chrome lined for longer lifespan and durability and also have a better twist in case I want to shoot heavier grains. This will be my first AR purchase and I didn't really want to have to build it myself (as I mostly lack the knowledge of doing so). |
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1:9 is the only twist available from us in a chrome-lined 20 bbl. How heavy of a bullet do you want to try to stabilize? The 1:9 is easily good for most 69gr loads, and even some heavier (individual bullet style, composition, and profile will dictate comaptibility). For maximum accuracy, the chrome-lined isn't the best, but for the lngeviy and durability its hard to beat. Steve/RRA |
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Well, I'm not sure to be honest. I'm not going to be shooting any matches or anything like that, but I would like to be able to be somewhat accurate out to 400-500 yards. Unlikely I'll need to, really, but this is my first AR and wanted it to be as close to an all-purpose rifle as possible, heh. Currently lack the cash to get more than one rifle at the moment. Thanks for the quick reply, by the way. |
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I think a 1/9 will most likely be a good compromise twist unless you plan to shoot exceptionally light or heavy bullets. A slower twist might work better with lighter bullets and you will most likely want a faster twist if you plan to shoot 75-80 grain loads. My 1/9 shoots 52-69 gr bullets very well. I recently took my RRA 20" on a prairie dog hunt and was hitting pretty consistently at 500-600 yards with 55 gr. V-Max loads. |