Odd 300 win mag casing

Capt. awesome · #1 09-07-2017, 03:46 PM

So I found a bunch of 300 win mag brass and for the most part is looks standard ( Angeled shoulders ) but I found about 30 pieces that were rounded. Not sure what I am looking at and it seems I can't post a picture . Hoping to pm someone who I can send a picture to and see what it is i actually have .

Lefty-Canuck · #2 09-07-2017, 03:47 PM

Sure it's not 300wby brass? With dual radius shoulder?

LC

elkhunter11 · #3 09-07-2017, 03:58 PM

Are the cases with the rounded shoulders longer?

Mhunter51 · #4 09-07-2017, 04:00 PM

I'm guessing it's 300 weatherby

Jeron Kahyar · #5 09-07-2017, 04:06 PM

Does it look like any of these three cases?

From left to right they are 300 Weatherby Mag, 300 Win. Mag, and a 300 Win. Mag after being fired in a 300 Weatherby chamber.

Sask Bearman · #6 09-07-2017, 04:56 PM

Quote:

Originally Posted by Mhunter51

I'm guessing it's 300 weatherby

Agreed.

Lefty-Canuck · #7 09-07-2017, 04:57 PM

Quote:

Originally Posted by Jeron Kahyar

Does it look like any of these three cases?

From left to right they are 300 Weatherby Mag, 300 Win. Mag, and a 300 Win. Mag after being fired in a 300 Weatherby chamber.

Yup seen all three before

LC

elkhunter11 · #8 09-07-2017, 05:02 PM

Quote:

Originally Posted by Jeron Kahyar

Does it look like any of these three cases?

From left to right they are 300 Weatherby Mag, 300 Win. Mag, and a 300 Win. Mag after being fired in a 300 Weatherby chamber.

One fellow at the range fired a full box of 300 winmag ammunition through a 300wby, and still never realized that he had the wrong ammunition.When his mistake was pointed out, his reply was that he simply bought the cheapest 300 magnum load, and he didn't know that there was a difference

Capt. awesome · #9 09-07-2017, 05:17 PM

@jeron , yes the one on the right it is . So that's what happens to a 300 WM brass when it's fired through a 300 wby? Is the brass just junk now ?

Thanks for the pics and replies.

Lefty-Canuck · #10 09-07-2017, 05:29 PM

Quote:

Originally Posted by Capt. awesome

@jeron , yes the one on the right it is . So that's what happens to a 300 WM brass when it's fired through a 300 wby? Is the brass just junk now ?

Thanks for the pics and replies.

Yup it's junk....or a good show and tell item.

LC

Capt. awesome · #11 09-07-2017, 05:33 PM

Yeah I'll keep one around to show people down the road . I didn't know there was that much difference with the win mag and weatherby cases. And this also illustrates why you should always have the right ammo for the right gun

SlightlyDistracting · #12 09-07-2017, 05:44 PM

Maybe its just me, but how does someone make that mistake?
To not know what the cartridge your gun fires looks like?
Or to turn it upside down and read it? Mindblowing
And 300win mag to boot
I bet the guy was playing the role. Buys the 300 as his first rifle, "I need the biggest bang I can buy," just to say he has one, but doesnt even know what the ammo looks like. Sad...
Kinda scary too

SlightlyDistracting · #13 09-07-2017, 05:48 PM

Quote:

Originally Posted by Capt. awesome

Yeah I'll keep one around to show people down the road . I didn't know there was that much difference with the win mag and weatherby cases. And this also illustrates why you should always have the right ammo for the right gun

Even slight differences are huge in a 60000psi explosion. Theres a reason rifles are labeled with a specific caliber. They dont say 300 win mag or something that looks the same.

Am I wrong to be so shocked? Does this happen a lot?

Big Sky · #14 09-07-2017, 06:04 PM

Quote:

Originally Posted by SlightlyDistracting

Maybe its just me, but how does someone make that mistake?

Tons of guys, myself included, say that they shoot a "7mag" or a "300 mag".
It's a good idea to know which one.

Lefty-Canuck · #15 09-07-2017, 06:13 PM

Quote:

Originally Posted by SlightlyDistracting

Maybe its just me, but how does someone make that mistake?
To not know what the cartridge your gun fires looks like?
Or to turn it upside down and read it? Mindblowing
And 300win mag to boot
I bet the guy was playing the role. Buys the 300 as his first rifle, "I need the biggest bang I can buy," just to say he has one, but doesnt even know what the ammo looks like. Sad...
Kinda scary too

Literally people do it because of cost or they have no clue.

Head about a guy arguing at a gun counter about it one day, bragged about having a 300wby but didn't want to pay for the .300wby ammo, gun counter handed him 300wby and he said I want the .300WM stuff...it's cheaper lol.

LC

260 Rem · #16 09-07-2017, 06:19 PM

That's how to make a Dasher. You could call it 300 Dasher. Stick a 115gr Berger FB in there and I'll bet it would leave a vapor trail. On second thought, that's a bad idea

elkhunter11 · #17 09-07-2017, 06:22 PM

Quote:

Originally Posted by SlightlyDistracting

Even slight differences are huge in a 60000psi explosion. Theres a reason rifles are labeled with a specific caliber. They dont say 300 win mag or something that looks the same.

Am I wrong to be so shocked? Does this happen a lot?

Most people just don't know any better. Many people refer to cartridges as a 7mag or a 300mag, rather than by the proper designation and it causes confusion. Knowing and using the proper designations and terminology can prevent a lot of issues like this.

SlightlyDistracting · #18 09-07-2017, 06:30 PM

When you take the Canadian Firearms Safety exam you are asked to demonstrate that you know how to read ammunition labels, and select the right type for a firearm.
I guess this is proof that the course/exam are a complete waste of time.

SlightlyDistracting · #19 09-07-2017, 06:37 PM

Quote:

Originally Posted by Lefty-Canuck

Literally people do it because of cost or they have no clue.

Head about a guy arguing at a gun counter about it one day, bragged about having a 300wby but didn't want to pay for the .300wby ammo, gun counter handed him 300wby and he said I want the .300WM stuff...it's cheaper lol.

LC

Thats crazzzy
But not surprising. Ive seen it all to often. Just recently a friend acquired his PAL. First thing he bout was the cheapest rifle he could find in 7mm rem mag.
I kid you not, the first monday after he showed up at work with a nasty shiner and a few bandaids covering the wound lol. He literally can not hit 5 inch targets at 150. I put him behind my weatherby 243win. and hes a fairly good shot. When I told him to sell his POS he argues that he needs the power.

Strong like bull, smart like tractor

Capt. awesome · #20 09-07-2017, 07:20 PM

Quote:

Originally Posted by SlightlyDistracting

When you take the Canadian Firearms Safety exam you are asked to demonstrate that you know how to read ammunition labels, and select the right type for a firearm.
I guess this is proof that the course/exam are a complete waste of time.

I wouldn't say it is a waste of time but certain things should have a little more emphasis placed on them, such as this . Maybe the person just grabbed any box that said .300 on it and was happy. You would figure after the first few rounds you would scratch your head and say " that doesn't feel right ".

fed · #21 09-07-2017, 08:17 PM

Capt awsome and capt obvious obviously don't know each other

Jeron Kahyar · #22 09-07-2017, 08:31 PM

Quote:

Originally Posted by Lefty-Canuck

Yup it's junk....or a good show and tell item.

LC

^This, only good for a reminder of what not to do.

Quote:

Originally Posted by elkhunter11

Most people just don't know any better. Many people refer to cartridges as a 7mag or a 300mag, rather than by the proper designation and it causes confusion. Knowing and using the proper designations and terminology can prevent a lot of issues like this.

I can 100% see where you are coming from and it may help of the "wiser" shooters use proper terms instead of assuming other know what they are talking about. In the end of think people need to take a bit more responsibility. At least learn the basics before venturing out (could save them a world of trouble). Unfortunately this seems to not be the case more often these days.

covey ridge · #23 09-07-2017, 08:43 PM

Quote:

Originally Posted by Capt. awesome

I wouldn't say it is a waste of time but certain things should have a little more emphasis placed on them, such as this . Maybe the person just grabbed any box that said .300 on it and was happy. You would figure after the first few rounds you would scratch your head and say " that doesn't feel right ".

Maybe you should keep a couple of those rounded brass as good luck charms?

The guy that created them was lucky that he wasn't seriously hurt and his mismatch only resulted in some useless brass.

Capt. awesome · #24 09-07-2017, 08:55 PM

Quote:

Originally Posted by fed

Capt awsome and capt obvious obviously don't know each other

Not sure what you're getting at ?

Capt. awesome · #25 09-07-2017, 08:58 PM

Quote:

Originally Posted by covey ridge

Maybe you should keep a couple of those rounded brass as good luck charms?

The guy that created them was lucky that he wasn't seriously hurt and his mismatch only resulted in some useless brass.

I have a few kept aside to show people when they ask.

I wish I was there when whoever it was decided to fire these .

SlightlyDistracting · #26 09-07-2017, 09:04 PM

Quote:

Originally Posted by Capt. awesome

So I found a bunch of 300 win mag brass and for the most part is looks standard ( Angeled shoulders ) but I found about 30 pieces that were rounded. Not sure what I am looking at and it seems I can't post a picture . Hoping to pm someone who I can send a picture to and see what it is i actually have .

Im curious why you didnt just read the headstamp. That would have told you what it was

Capt. awesome · #27 09-07-2017, 09:08 PM

Quote:

Originally Posted by SlightlyDistracting

Im curious why you didnt just read the headstamp. That would have told you what it was

I did read the headstamp and even looked at various 300 win mag rounds at cabelas to see if there was something I was missing . I didn't know it was after being shot from a 300 weatherby as I have never dealt with anything from them

elkhunter11 · #28 09-07-2017, 09:10 PM

Quote:

Originally Posted by SlightlyDistracting

Im curious why you didnt just read the headstamp. That would have told you what it was

The headstamp would have told him that the cases were originally 300winmag cases, but they wouldn't have explained why those cases were different than the rest.

covey ridge · #29 09-07-2017, 09:12 PM

Quote:

Originally Posted by SlightlyDistracting

Im curious why you didnt just read the headstamp. That would have told you what it was

The head stamp only tells you what the original cartridge designation was.

The OP did right to ask

260 Rem · #30 09-07-2017, 09:16 PM

I'd be interested to know if anybody has actually been injured through this mistake? At first blush, it looks like because the round headspaces on the belt, it could not move forward enough .... thus preventing separation at the back end...and that the shoulder blows forward to create a secondary point of headspace on the shoulder....and seals off at that point?
I am not familiar with these rounds but it looks like the WBY belt did grow a bit?