The Firearms Forum - Gun Community - View Single Post - Home defense AR: Kept w/ round in chamber?

carver · 10-17-2012, 07:17 AM

http://www.olyarms.com/index.php?opt...d=15&Itemid=26

The 55 grain HP .223 has less penetration than any of the other ammunition tested. Based on the results of this testing, there appears to be no basis for concern regarding the over penetration of the .223 [HP] round. In fact, it seems even safer in this regard than .40 S&W handgun ammunition.

The hollow point cavity in the .40S&W round filled with material when shot through the wall. This caused [these bullets] to fail to expand when they entered the gelatin. As a result, they penetrated 8.5" farther than when shot directly into the gelatin.

When the .223 [HP] was shot through he wall it began to fragment and as a result penetrated the gelatin only 5.5".

Because the .223 [HP] begins to break up on impact, it has less potential for damage or injury than the 12 ga. in the event of a ricochet. The .223 [HP] is obviously safer in an urban environment than the 12 ga. with slugs or buckshot.

10-17-2012, 07:17 AM	#44
carver TFF Moderator/Host Join Date: Jul 2008 Location: DAV, Deep in the Pineywoods of East Texas, just west of Shreveport, LA Contributor Posts: 11,280	Re: Home defense AR: Kept w/ round in chamber? http://www.olyarms.com/index.php?opt...d=15&Itemid=26 The 55 grain HP .223 has less penetration than any of the other ammunition tested. Based on the results of this testing, there appears to be no basis for concern regarding the over penetration of the .223 [HP] round. In fact, it seems even safer in this regard than .40 S&W handgun ammunition. The hollow point cavity in the .40S&W round filled with material when shot through the wall. This caused [these bullets] to fail to expand when they entered the gelatin. As a result, they penetrated 8.5" farther than when shot directly into the gelatin. When the .223 [HP] was shot through he wall it began to fragment and as a result penetrated the gelatin only 5.5". Because the .223 [HP] begins to break up on impact, it has less potential for damage or injury than the 12 ga. in the event of a ricochet. The .223 [HP] is obviously safer in an urban environment than the 12 ga. with slugs or buckshot. __________________ Y'all be safe now, ya hear! Lamentations Chapter 5: 1. Remember, O LORD, what is come upon us: consider, and behold our reproach. 2. Our inheritance is turned to strangers, our houses to aliens. 3. We are orphans and fatherless, our mothers [are] as widows. 5. Our necks [are] under persecution: we labour, [and] have no rest. 16. The crown is fallen [from] our head: woe unto us, that we have sinned! 21. Turn thou us unto thee, O LORD, and we shall be turned; renew our days as of old.