Originally Posted By: coleridgeWow, I didn't know you needed to look a ballistics at 300 Yards to decide on a home defense cartrige (you must have a REALLY big house)!!!!
In any typical "home defense" situations your target will be inside 25 yards (usually MUCH closer). At that range the 30 carbine is COMPARABLE to the 300BLK. Yes the BLK can be loaded hotter than listed but so can the carbine. Either way your looking at 200-300fps difference (AT MOST) speeds with 110gr bullets (pretty negligable at 25 yards). However, if your worried about speed just run the 223Rem in the same platform as the blkout.
Yes the BLKout is more versitle (than the carbine) with a longer OAL, much tighter twist, & slightly more case capacity. To sumerize the advatages you can load it with high BC bullets , WOW.
THe BLK is cool but it's not some things people try to make them. (I mean anyway you look at it the "worthless 30/30" is better) When loaded hot & light, it lacks the trajectory you can get with rounds in same platform (223, 6x45,6.8, etc). When loaded subsonic with the heavies it pretty much runs the energy of a 45acp (you can get that in MUCH smaller package ie 1911) for home defense.
I'm not bashing the 300 Blackout (I have one & waiting a TB 30-P1 for it) it's just a niche cartridge. For home defense the carbine would be fine (as long as it's not a "jammer"). A 300 BLK would be fine, a 45acp, 9mm, 40, 223, 6x45, 30/30, & soo on would be fine if over penetration isn't a problem. However, I feel a shotgun is far & away a better home defense weapon; even though it's ineffective at 300 yards
You must not have read the entire thread because that wasn't the point. I already stated to the OP that a good USGI M1 Carbine with modern defensive ammunition would make an excellent choice.
Another poster alluded that the 300 Blackout is nothing more than an updated 30 Carbine cartridge with nearly identical performance. That is clearly not the case so I provided the documentation to prove it.