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Huh? You think .223 is underpowered so you want a 9mm instead? Muzzle energy of a 9mm handgun is somewhere around 350 ft-lbs. Add 10% for a 9mm carbine. Muzzle energy of a .223 rifle is around 1300 ft-lbs.

.223 is far, far more powerful than 9mm.

In terms of recoil, a .223 AR15 has hardly any at all. You can put the buttstock on your forehead and pull the trigger.

In terms of ballistics, the 9mm will be hopeless beyond 100 yards. At 100 yards, the 9mm has 5.6" of bullet drop. At 150 yards, it is 25".

If you sight in your .223 at 100 yards, you will have 1.5" of drop at 150 yards. 4.8" of drop at 200 yards. 19.3" at 300 yards.

Stick with a .223. It is a far better round than a 9mm.

Here's a ballistics calculator from Norma:

http://www.norma.cc/htm_files/javapagee.htm

<blockquote data-quote="M1911" data-source="post: 55780" data-attributes="member: 123">Huh?&nbsp; You think .223 is underpowered so you want a 9mm instead?&nbsp; Muzzle energy of a 9mm handgun is somewhere around 350 ft-lbs.&nbsp; Add 10% for a 9mm carbine.&nbsp; Muzzle energy of a .223 rifle is around 1300 ft-lbs.&nbsp; .223 is far, far more powerful than 9mm.In terms of recoil, a .223 AR15 has hardly any at all.&nbsp; You can put the buttstock on your forehead and pull the trigger. In terms of ballistics, the 9mm will be hopeless beyond 100 yards.&nbsp; At 100 yards, the 9mm has 5.6&quot; of bullet drop.&nbsp; At 150 yards, it is 25&quot;.If you sight in your .223 at 100 yards, you will have 1.5&quot; of drop at 150 yards.&nbsp; 4.8&quot; of drop at 200 yards.&nbsp; 19.3&quot; at 300 yards.&nbsp; Stick with a .223.&nbsp; It is a far better round than a 9mm.Here&#039;s a ballistics calculator from Norma:<a href="http://www.norma.cc/htm_files/javapagee.htm" target="_blank">http://www.norma.cc/htm_files/javapagee.htm</a></blockquote>

[QUOTE="M1911, post: 55780, member: 123"] Huh? You think .223 is underpowered so you want a 9mm instead? Muzzle energy of a 9mm handgun is somewhere around 350 ft-lbs. Add 10% for a 9mm carbine. Muzzle energy of a .223 rifle is around 1300 ft-lbs. .223 is far, far more powerful than 9mm. In terms of recoil, a .223 AR15 has hardly any at all. You can put the buttstock on your forehead and pull the trigger. In terms of ballistics, the 9mm will be hopeless beyond 100 yards. At 100 yards, the 9mm has 5.6" of bullet drop. At 150 yards, it is 25". If you sight in your .223 at 100 yards, you will have 1.5" of drop at 150 yards. 4.8" of drop at 200 yards. 19.3" at 300 yards. Stick with a .223. It is a far better round than a 9mm. Here's a ballistics calculator from Norma: [url]http://www.norma.cc/htm_files/javapagee.htm[/url] [/QUOTE]

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