![]() ![]() I’m not preparing for hordes of zombies, so I’m betting that my Remington 870 with seven rounds of #4 buck will take care of any trouble that finds me. There’s nothing that will stop a fight like a 12 gauge shotgun I’m not quoting Clint Smith, but you get the picture. So where did that leave me in my quest for a home defense gun? I went back to the basics. Granted the 300 Blk was designed to burn all of its powder in a short barrel so even the supersonic loads aren’t anywhere near as loud as a short barreled 5.56, but the over penetration risk made it a no go for me. So I swapped over to the 300 Blk, except that the same thing that makes that bullet “barrier blind” will cause serious over-penetration issues in a residential setting. Anyone who has ever run a short barreled 5.56 with a can has learned how to take a big deep breath of combustion gases and charge on with a teary eyed smile. Of course, for home defense I employed a suppressor, but the same problem that makes a short barreled 5.56 so loud (burning a lot of powder outside the barrel) is also a problem when running a suppressor. ![]() I’m not building clone rifles, I’m not kitted up in a vehicle, and I don’t like giving up the velocity that makes that caliber lethal on two-legged animals. As far as 5.56 is concerned, I don’t even own anything with a barrel less than 16” anymore. I have used both a 12.5” 5.56 and a 9” 300 Blk as my home defense guns at one time or another and neither of them now serve this purpose. Ok, I’m going to offer my “opinion”, and would expect that some may disagree. I like suppressed all the time for all things too and suggest that to everyone. I basically use the 45ACP, suppressed, for close stuff and use the 300blk for the 100-200 yards range, in supersonic, as that's all my local landscape will be offering for shots anyways and its more effective than 556 in that range due to energy and bullet options. I have both calibers though so can compare. My personal favorite is the CMMG Banshee as I can run regular 45ACP, 45 Super and 450SMC in it. Keep that in mind.Īfter comparing 300blk and 45ACP, using a PCC in 45ACP maybe better for home defence as you can suppress it very well (as does 300blk) but you have a lot more bullet and power options in 45ACP. Both will blow your eardrums out indoors unless you are suppressed. If you want to run supers, you can but frankly a super 300blk and 45ACP, both out of similar length barrels, for home defense distances, are ballistically about the same. ![]() I think I may still hang on to my 10.5" 5.56 upper, but wondering if there is a better cartridge to use for short rifles in a home defense situation.ģ00blk is suited for short barrels so if you are going with supersonic, you'll be more effective than with 556 when running similar length short barrels. But now the consensus seems to be that the 10.5" is too short and now the minimum barrel length should be at least 11.5" in 5.56 with 14.5" being preferred. ![]() But with funds being tight, would a 300 Blackout upper be a better choice in the meantime?Īnd a side note, I remember back when all the forum "experts" said that the 10.5" was the minimum barrel length to be effective when chambered in 5.56. I'm just thinking is there a better option than 5.56? Would a 10.5" 300 Blackout maybe be a better choice? I know there is the suppressor option and I'm not ruling that out for a future purchase. I know, I know, I've read all the comments about better to have some hearing loss than be dead. After reading a lot of people talk about the diminished ballistics in the 10.5" but more importantly the kind of hearing damage that can occur when firing the 5.56 from a 10.5" barrel inside the confines of a home, I'm kind of rethinking my decision. Currently, I have a 10.5" AR in 5.56 for my dedicated home defense rifle. So DGR basically says: 300 BLK penetrates too much for home defense, use 556.I've been reading and reading and reading and at this point I think I'm kind of in information overload. 300 BLK loadings all penetrate deeper than the 12-18" ideal range for LE use in contrast there are multiple 6.8 mm loads which currently meet this criteria, along with offering acceptable intermediate barrier capability 300 BLK are excellent cartridge choices for individuals and organizations requiring a caliber larger than. 300 BLK Rem UMC 115 gr FMJ/CTFB offers the longest single yaw cycle that we have ever seenīoth 6.8 mm and. He was incredibly happy with some 300 BO loads. Gary Roberts, the world's leading expert on wounding ballistics. If I were swapping out a 556 barrel for a 300 BO barrel, I would just put in a new gas system and leave the old gas system on the 556 barrel.įor defensive rounds, please read from the holy Dr. 300 BLK and 5.56 rounds right?ģ00 Blackout always uses pistol length gas system regardless of length (mostly). Also I believe I have to change out the gas tube between. ![]()
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