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Thread: 4" Significance?

  1. #11
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    Quote Originally Posted by BMFOTP View Post
    So for best results I should shoot at targets around 150 yds or more to achieve the best expansion?
    With a mid length barrel like an M4 or 16", that is what you can expect with a 55gn. to 75gn JHP. Of couese there are some nuances, but this is a good rule to follow. Remember, these are "Close Quarters Battle" CQB weapons. Anything farther than that is a good reason to excape and evade IMHO.

    With a 20-24" barrel, your fragmentation could be around 200- 250 yards.

    You can learn a lot from reading the tacked "Ammo FAQ" about terminal velocoties with various weights and barrel lengths.

  2. #12
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    Aside from the ballistic benefits it's a little easier to make a 14.5 run than a 10.5. You have to stick to high-quality parts (which you should anyway) when you get to barrels in the 10.5 range.

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