Belted = Run ElkLooks cool though. Says POWER.
it worked back then for head space…. so why fix not broken???
I personally never seen a rim case I didn’t like[/QUOTE
Headspace on the shoulder is more precise. In fact, you can adjust your die to make any belted mag headspace that way.
dang, I don’t load alot of rifle ammo, I might pull my 7mm and start over, I was necking down 8mm rem mag to get 7stw casesThe belt works as intended but if your don't watch and setup your dies on the shoulder you will have short brass life due to case head failure. It's been decades since I've had any factory ammo for my Rem 7mm Mag. But if I recall if you set your dies down to contact the shell plate you've over shot the shoulder position by quite a bit. I load for several 7mm Mags and use the RCBS Precision Mic to setup and adj my dies. One gun is way tighter than the other. I know how much shim to install under the die's lock ring when I load for it. I setup my dies like I would any std rifle cartridge, 0.001" shoulder clearance.
As an aside, I find it somewhat upsetting that Hornady/Marlin designed the 450 Marlin with an extra wide belt. They could have based it on the 458 magnum, so shooters would have the opportunity to make brass from other magnum cases in times of need.
I understand that their reason was to not give shooters the opportunity to put a .458 cartridge in a 7mm rifle.
Also, why let them make brass instead of buying it? I doubt they anticipated the current shortages.
300 Black needs a belt, that would definitely chamber in a 5.56
you sure about that, everyone warn me to label my 300blk mags because it would chamber in 5.56No, it won't. 300 black and a 223 have the same overall length. That 30 caliber bullet would not fit in a chamber with a 22 caliber neck.
you sure about that, everyone warn me to label my 300blk mags because it would chamber in 5.56
PSA to 300 BLK … It will chamber easily and fire in 5.56 with catastrophic effects
View attachment 1055428
Ooooh no, that’s one internet lure that I take pretty seriously and believe.So you've tried it? You notice that the bullet has been pushed back? I may be cold, but I have little sympathy for anybody that oblivious.
Ooooh no, that’s one internet lure that I take pretty seriously and believe.
I seen to many video of people putting 300blk in .223 chamber and firing, it loaded smoothly without force because the case is the same, just shorter and necked upI see your point. I wonder if that illustration was with an empty cartridge case. I also wonder if a normal powder charge would compress and stop the process. I guess I will never find out since I don't have an AR15 223, nor do I have one in 300 Black.
We had a saying in my line of work. "Beat to fit, and paint to match." Meaning you could always force fit something if you had a big enough hammer. It looks to me like the AR15 provides it's own hammer at the push of a button.
I have been trying to visualize how that situation could arise. The only way I can see it is if you grabbed a magazine preloaded with 300 Blk, and then grabbed a 223 AR15 by mistake. Without noticing that you grabbed the wrong gun because your 223 AR15 and your 300 Blk AR15 are exactly the same right? After all I have a bunch of identical guns in my safe? Then, not notice that the hole at the end of the barrel is grossly smaller than the bullet in your ammo? Like I said, oblivious.
It would have to be an AR, because you would have to force things pretty good in a bolt action to force it to fit.
I see your point. I wonder if that illustration was with an empty cartridge case. I also wonder if a normal powder charge would compress and stop the process. I guess I will never find out since I don't have an AR15 223, nor do I have one in 300 Black.
We had a saying in my line of work. "Beat to fit, and paint to match." Meaning you could always force fit something if you had a big enough hammer. It looks to me like the AR15 provides it's own hammer at the push of a button.
I have been trying to visualize how that situation could arise. The only way I can see it is if you grabbed a magazine preloaded with 300 Blk, and then grabbed a 223 AR15 by mistake. Without noticing that you grabbed the wrong gun because your 223 AR15 and your 300 Blk AR15 are exactly the same right? After all I have a bunch of identical guns in my safe? Then, not notice that the hole at the end of the barrel is grossly smaller than the bullet in your ammo? Like I said, oblivious.
It would have to be an AR, because you would have to force things pretty good in a bolt action to force it to fit.
I have tried it myself just out of curiosity with a dummy loaded 300 blackout cartridge, and the closing bolt is indeed enough force to push the bullet back into the case far enough for the bolt to go into battery with a 300 blackout round in a 223 chamber. Some bullets profiles are more likely than others to be able to push far enough back, but I have tried it and it can happen.
The instances where I have heard of it happening in real life have been just as you guessed, someone picked up a mag full of 300 blackout and shoved it home in a 223. For this reason I never leave a magazine loaded with 300 blackout. I only load the mag at the time I am going to go shoot it.
I know we're drifting, but a 300 BLK 5.56 Kaboom is a thing. Here's another.