50 bmg question

[repubconserv]

It is my understanding that 12.7x99mm rifles (50 bmg) are "banned" in this state (for new buyers). Does this include anything above 50 BMG?

Example: For some weird reason someone wants to create a new scaled up cartridge and gun chambered for 12.7x110mm, IE same dimensions as 50 BMG, but just a longer case. CA Legal?

[ke6guj]

12.7x108mm is the .50Russian and I've been told that a .50BMG round will chamber and fire in a .50Russian chamber. Since the .50BMG ban does not say "designed to fire a .50BMG round", but that "can fire a .50BMG round", that might include a rifle with a 12.7x108 chamber.

That would sort of like banning revolvers that can fire a .38 special round and then trying to claim that a .357Mag revolver is legal.



12278. (a) As used in this chapter, a ".50 BMG rifle" means a center fire rifle that can fire a .50 BMG cartridge and is not already an assault weapon pursuant to Section 12276, 12276.1, or 12276.5, or a machinegun, as defined in Section 12200.

[repubconserv]

12.7x108mm is the .50Russian and I've been told that a .50BMG round will chamber and fire in a .50Russian chamber. Since the .50BMG ban does not say "designed to fire a .50BMG round", but that "can fire a .50BMG round", that might include a rifle with a 12.7x108 chamber.

That would sort of like banning revolvers that can fire a .38 special round and then trying to claim that a .357Mag revolver is legal.



12278. (a) As used in this chapter, a ".50 BMG rifle" means a center fire rifle that can fire a .50 BMG cartridge and is not already an assault weapon pursuant to Section 12276, 12276.1, or 12276.5, or a machinegun, as defined in Section 12200.

That part never registered in my brain until now

[timdps]

12.7x108mm is the .50Russian and I've been told that a .50BMG round will chamber and fire in a .50Russian chamber.

Very unlikely. The 12.7 is a larger round. The shoulder of a 12.7 is 3.4" from the base compared to 3.0" on the BMG. Base diameter of the 12.7 .85" compared to the BMG's .80". The BMG round will drop deep into the 12.7 chamber with the base ending up about .30"/8mm into the chamber. I suppose that if you could get the extractor to hold the round in place so the firing pin could hit it, but I would not want to be around when it does.

Comparison photo:

http://weaponsassembly.blogspot.com/2011/03/ammunition-for-large-caliber-machine.html

The chamber can be sleeved to fit the BMG however

Good luck finding a Russian 12.7x108 rifle though! I have a military carry case for one, but don't ever expect to see/own one.

Tim

[iBkickinit]

I had my AR-50 rechambered in .50 DTC and haven't looked back. Love it as as much as I would a BMG. Only pain is having to fireform brass. Same components, the neck is just shortened about 1/10".

[repubconserv]

............................I suppose that if you could get the extractor to hold the round in place so the firing pin could hit it, but I would not want to be around when it does..................................
.

Tim

I saw a post on here about a 308 round being fired from a 30-06 rifle, so I think it is entirely possible for a 50 bmg to be fired from a 50R.

I had my AR-50 rechambered in .50 DTC and haven't looked back. Love it as as much as I would a BMG. Only pain is having to fireform brass. Same components, the neck is just shortened about 1/10".

I'm not really looking for a long range 50, I just ponder things a lot. How this particular train of thought came about was, I was wondering if "chambering" rifles above 50 bmg (not in terms of bullet diameter, but in terms of case size, power, etc) was legal in CA. My thoughts are it was silly to enact a ban on only 50 BMG if there are more powerful 50 chambering available, so maybe CA's lawmakers actually thought something through. but I guess They are dumber than they look (very hard in their case) and CA's laws don't make sense anyways so.... yeah

[jonc]

i want a BMG!!!

[EBR Works]

Why not just get a .50 DTC rifle? The round has identical ballistics to .50 BMG. Same bullet, same primer and the case actually holds more powder.

[repubconserv]

Why not just get a .50 DTC rifle? The round has identical ballistics to .50 BMG. Same bullet, same primer and the case actually holds more powder.

because 50 BMG is more dangerous.... Ca says so

[EBR Works]

because 50 BMG is more dangerous.... Ca says so

Luckily, California legislators didn't know about .50 DTC when they created the ban.

[a1c]

My thoughts are it was silly to enact a ban on only 50 BMG if there are more powerful 50 chambering available, so maybe CA's lawmakers actually thought something through. but I guess They are dumber than they look (very hard in their case) and CA's laws don't make sense anyways so.... yeah

You nailed it. As we know, 99% of gun control laws don't make sense, because they are based on emotion and ignorance.

Unfortunately, this doesn't just affect gun laws, but also other issues that trigger a knee-jerk reaction in some groups.

[CSACANNONEER]

Why not just get a .50 DTC rifle? The round has identical ballistics to .50 BMG. Same bullet, same primer and the case actually holds more powder.

It is supposed to be the same capacity. The design of the straight walled DTC cartridge is supposedly a slightly more efficient design. All I know is there are some great 50 shooters out there shooting DTC chambered guns. One won the FCSA Rookie of the Year at the World Championships a few years ago. This year, at our Coalinga match, his DTC chambered gun shot the smallest group of the match.

[EBR Works]

It is supposed to be the same capacity.

[CSACANNONEER]

Interesting. I wonder if all DTC variations (I know of at least 3) are the same???? I'm assuming that you measured brass from the same lot instead of using brass with different wall thicknesses.

[EBR Works]

Interesting. I wonder if all DTC variations (I know of at least 3) are the same???? I'm assuming that you measured brass from the same lot instead of using brass with different wall thicknesses.

Those numbers are from Wikipedia.