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The Range
Rifle & Shotgun Discussion
.300 Blackout Questions.
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<blockquote data-quote="ASP785" data-source="post: 1998287" data-attributes="member: 12170"><p>This argument comes more of a question of what 'bullet' or platform rather than 300 blackout versus .223. You <u>cannot</u> make absolute qualifying statements regardless of which side of the argument you are on. If you are planning on shooting the 220 grn load suppresed out of a 9inch barrel at 300 yards, you have brought the wrong tool for the job. I have no doubt any 300 black combination can hit an object at that distance, but that does not mean it is optimal. You can throw around terms like energy and terminal ballistics, but without a defined scenario or comparison you aren't comparing apples to oranges. Energy is irrelevant when the bullet trajectory looks more like an umbrella than a straight line. To quote Dr. Fackler, "An extremely important point to address is the question of velocity. Many people are obsessed with using the highest-velocity ammunition possible. This is a bad choice as penetration is usually DECREASED with increased velocity."</p><p></p><p>If I am planning on shooting at 200-400 yards, I wouldn't even consider the 300 blackout, regardless of barrel length. Its not optimal at those distances. I would choose the 5.56 every day of the week and twice on Sunday, with either a 77 grn loading or one of the Barnes TSX bullets at 50+ grns.</p><p></p><p>With that said, if I am comparing the two cartridges at distances not exceeding 100 yards out of very short <10" barrels, the gap between the performance of these two cartridges narrows. The 5.56 Black Hills 50 grn TSX loading offers amazing performance with 12+ inches of penetration through all common intermediate barriers out of short barrels. The problem is the 50 grn bullet specified by Black Hills is not available to us reloaders, which is a negative for me.</p><p></p><p>On the other hand, the 110 grn TTSX, as seen in the photos, offers greater penetration through intermediate barriers than the 5.56 Black Hills loading, and reliably expands through steel. Also it is available as a component to us reloaders, which is the main advantage for me and is why I am choosing it for an SBR platform.</p><p></p><p>The other scenario I believe the 300 blackout excels in is hog or deer hunting out of a 16" barrel based on the 30 caliber loading and the expansion characteristics of the 110 grn TTSX.</p><p></p><p>Bottom line, the 300 blackout is <u>not</u> the be all end all of cartridge development in the AR platform. People tout it as the do anything cartridge, because they bought in to the marketing hype. It does have its uses though.</p><p></p><p><a href="http://[IMG]https://www.okshooters.com/data/MetaMirrorCache/i1152.photobucket.com_albums_p482_Nascarrox2448_300aacblkbarriersummary.jpg[/IMG]" target="_blank"><img src="https://www.okshooters.com/data/MetaMirrorCache/i1152.photobucket.com_albums_p482_Nascarrox2448_300aacblkbarriersummary.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p><a href="http://ammo.ar15.com/project/Self_Defense_Ammo_FAQ/index.htm" target="_blank">http://ammo.ar15.com/project/Self_Defense_Ammo_FAQ/index.htm</a></p></blockquote><p></p>
[QUOTE="ASP785, post: 1998287, member: 12170"] This argument comes more of a question of what 'bullet' or platform rather than 300 blackout versus .223. You [U]cannot[/U] make absolute qualifying statements regardless of which side of the argument you are on. If you are planning on shooting the 220 grn load suppresed out of a 9inch barrel at 300 yards, you have brought the wrong tool for the job. I have no doubt any 300 black combination can hit an object at that distance, but that does not mean it is optimal. You can throw around terms like energy and terminal ballistics, but without a defined scenario or comparison you aren't comparing apples to oranges. Energy is irrelevant when the bullet trajectory looks more like an umbrella than a straight line. To quote Dr. Fackler, "An extremely important point to address is the question of velocity. Many people are obsessed with using the highest-velocity ammunition possible. This is a bad choice as penetration is usually DECREASED with increased velocity." If I am planning on shooting at 200-400 yards, I wouldn't even consider the 300 blackout, regardless of barrel length. Its not optimal at those distances. I would choose the 5.56 every day of the week and twice on Sunday, with either a 77 grn loading or one of the Barnes TSX bullets at 50+ grns. With that said, if I am comparing the two cartridges at distances not exceeding 100 yards out of very short <10" barrels, the gap between the performance of these two cartridges narrows. The 5.56 Black Hills 50 grn TSX loading offers amazing performance with 12+ inches of penetration through all common intermediate barriers out of short barrels. The problem is the 50 grn bullet specified by Black Hills is not available to us reloaders, which is a negative for me. On the other hand, the 110 grn TTSX, as seen in the photos, offers greater penetration through intermediate barriers than the 5.56 Black Hills loading, and reliably expands through steel. Also it is available as a component to us reloaders, which is the main advantage for me and is why I am choosing it for an SBR platform. The other scenario I believe the 300 blackout excels in is hog or deer hunting out of a 16" barrel based on the 30 caliber loading and the expansion characteristics of the 110 grn TTSX. Bottom line, the 300 blackout is [U]not[/U] the be all end all of cartridge development in the AR platform. People tout it as the do anything cartridge, because they bought in to the marketing hype. It does have its uses though. [URL="[IMG]https://www.okshooters.com/data/MetaMirrorCache/i1152.photobucket.com_albums_p482_Nascarrox2448_300aacblkbarriersummary.jpg[/IMG]"][IMG]https://www.okshooters.com/data/MetaMirrorCache/i1152.photobucket.com_albums_p482_Nascarrox2448_300aacblkbarriersummary.jpg[/IMG][/URL] [URL="http://ammo.ar15.com/project/Self_Defense_Ammo_FAQ/index.htm"]http://ammo.ar15.com/project/Self_Defense_Ammo_FAQ/index.htm[/URL] [/QUOTE]
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