A hole nearly three inches across and as deep was left in the wax media.Next on the agenda was to fire both carbines into the 2x4 and wall board material. The PDX load in question was a 147 grain bonded JHP. If all you can get is fmj ammo, I'd HUGELY recommend the 223 over the 9mm. However, there is no getting around the fact that centerfire rifle training requires more specialized or dedicated facilities and targets. I’ve trained all over the United States and finding and indoor range where centerfire rifles are permitted is difficult. In many cases, this means it won’t penetrate as far as a 9mm round. From a distance of seven yards I fired a single round of the Winchester ammunition. A tight 1.17 inch three shot cluster at fifty yards proved the carbine and ammo combination could be counted on.From the 9mm pistol ammunition side of house I chose the new Winchester PDX1 brand and the USA white box 115grain FMJ. Therefore, 5.56mm NATO ammo isn’t safe for use in a rifle chambered for .223 Remington, but .223 is OK in 5.56. Comparing apple to apples, 9mm FMJ ammo costs about half that of .223 FMJ ammo. This would represent a standard interior wall construction, minus 2x4 studs. During this review we’ll examine both 9x91mm and .223 Remington carbines from CMMG side by side.Presented for your consideration are M4 style carbines with sixteen inch barrels. The bullet passed completely through and entered the waxy media.Step two was to fire the .223 cartridge from Hornady. Both the 9mm and .223 Remington rounds passed completely through.Taking a moment to closely examine the bullet box, I pried apart the layers of wax media and found that the .223 TAP round had penetrated just shy of 8 inches. The cartridge holds a bullet the same diameter as the 9mm (.355”) but in a smaller case with diminished capacity (roughly speaking, 15% less than the 9mm in grains of H2O). Which is better for Self-Defense, Hunting or Plinking? The 9mm is also known as 9×19, which itself is short for 9x19mm Parabellum. All Rights Reserved The projectile did its job very well and expanded violently. It had not deformed and looked almost good enough to be reloaded. Also, we must take into account that many (not all, save your letters) indoor ranges and subsequently the target frames, carries, backstop etc. Many training facilities will deal with the rifle situation by shooting only frangible projectile ammunition. But I also have 9mm carbines and I'd have absolutely no problem trusting one of them for close-range defensive use - if loaded thoughtfully. Capturing the fired bullets would be accomplished through the construction of a bullet trap of sorts. This set up actually worked out better than I anticipated and will be repeated in future tests.Loading all the guns, ammo, and target material up in the truck we drove to the range on a very pleasant afternoon. An Austrian named Georg Luger designed the modern world’s most popular cartridge in 1901. .22 vs 9mm. Both have flat-top receivers, 4-way rail aluminum forearms, and retractable stocks.The free-floating 5.56mm barrel has 1 in 7 right hand twist rifling. You're looking at about 1300 fps vs 2700 fps or so in the 223. Again, from fifty yards I fired several test groups on paper. By contrast, .223 Remington tends to produce lower chamber pressures between 52,000 and 55,000 psi, going by SAAMI specs. At that depth I discovered several bullet fragments. All rights reserved. First of all, training ammo for the .223 costs about twice as much as comparable training ammo for a sidearm. This contraption was more of a rectangular trough made of wood with an open top. 9mm bullet loaded into a .223? That being the case, we need to get our troops out training with these guns if we expect them to have the confidence and ability to use them in a crisis.The die has long since been cast and the Stoner-based carbine is now While the .223 Remington cartridge, with the appropriate load, is vastly superior as a fight stopper when compared to a handgun, it also offers some challenges in training. In this arena, CMMG, Inc. of Fayette, Missouri has you covered. The 9mm lower was a dedicated receiver, not a plugged or modified AR-type.

I haven't seen that in the 9mm but it doesn't cause the 9mm bullet to suddenly become a 2000 fps projectile. Comparing the two in a head to head is easy when you’re only viewing the size of the caliber. That works but again, the cost of frangible rifle ammo mean high cost, therefore fewer rounds put down range. I was wondering, has anyone ever cut the bottleneck off of a .223 case and loaded it with a 9mm bullet? Same scenario, shot through the wall board into the wax media at seven yards. Yes, you absolutely want to train people with the gear they are carrying.