.300 Win Ultra Mag question

I am also a Hunter Education Instructor , and I would like one of those fired cases too ! I have never seen anything like that in my 50 years of shooting ! You are a very lucky fellow that that gun didn't blow up in your face ! Lesson Learned ?

shane256 said:

Yeah... look down around the belt on that brass... You should count your lucky stars.

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+1 !! That is actually what impressed(??) me most! I cannot believe the stretch there, without a separation. Thank goodness there was not a problem!

Unfortunately i've already given the old brass away and kept one for "a little reminder". Otherwise i would have gladly sent some around!

In the end I am going to keep the gun, and get something else as well. After all I got the thing for such a dirt cheap price that i really dont consider it all that much of a loss if i shoot it every so often.

As far as reloading, i have a friend here at work who hunts with a 300 Win Mag and a 300 RUM...and he's been reloading those shells for years. So I think he is a perfect resource. Im actually going over there tonight and we are going to make some, and do some training...pretty stoked!

WOW. You are so lucky your still alive and or have all your hands intact. You might want to look into a muzzle brake for that also it will help soften up the punch.

Neat picture. What kept the problem from getting out of hand, in my opinion, was that the bullet was probably reasonably well aligned in the throat when it went bang. And of course was the correct diameter. If the bullet doesn't get stuck, then the gas pressure just expands the case to fit the chamber.

The rifle manufacturers have to design the gun to handle a certain level of escaping gas, because case heads to let go from time to time. When pressures get pushed outside of the normal range (due to a bore obstruction or delayed ignition, etc.) is when bad things happen.

Thanks for posting the pic. Good lesson for all.

Very interesting event, and nice symmetry on the olives. Hope you have someone to help you out getting started on hand loading. You can find out anything you need to right here, but a hands-on instructor is unbeatable.

You need a Mentor , everyone should have one or two , I did , but they were older and have passed on . I guess mentoring can be done online ! There is a World of information out there . All you need to attain it , is the ability to read !!

Yeah i've started reloading at this point and am trying a few different loads. Thanks to Hodgdon and their reloading data center, im going to try a few things. I bought some Hornady 180gr Interlock BTSP's as well as some SST's. Powder im using is Retumbo, with min to max grain 94.0-100.5C. So im going to start experimenting with different loads and see what I get. I also want to try some nosler accubonds. maybe some H1000 powder...

oh and side note, boresnakes are the best thing ever when it comes to cleaning the thing

I would bet that Retumbo or RL25 would give you excellent speed and accuracy. I would be a little weary of pushing unbonded bullets at RUM speeds, but heck, if you are just hunting deer with them, I bet you would be okay. Be too look into some AB's or Interbonds, just for some extra insurance! Scotty

A cup and core Bullet at RUM velocity is going to destroy ALOT of Venison unless the Deer is 500 Yards away !

I think reloaders would find getting proper neck contact on the bullet a problem with those fired cases! Glad you're okay after the experience.

OneShotKill said:

I think reloaders would find getting proper neck contact on the bullet a problem with those fired cases! Glad you're okay after the experience.

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yeah obviously i wouldnt used those win mag cases...i have a bunch of 300 RUM brass ive already shot im going to clean and re-use, and also purchased new brass

If I were you, I'd sell the gun to a scrap metal dealer and take up golf or something else. You've used up a whole quota of luck and stupid in one right there.

For the life of me I cannot understand people buying firearms that are way more than they need or can handle. Then not knowing enough about them to know that the cartridge they just loaded into the gun isn't the proper round. You should know enought about a gun to be able to visually tell if the cartridge is the right one or at least have the where-with-all to recognize the label and headstamp don't read the same as the barrel chambering specs.

You're lucky to be alive, much less uninjured.

> I'd sell the gun to a scrap metal dealer and take up golf or something else.

PLEASE!

I bought the inventory of a sporting goods store and had a lot of the .300 xxxxxxx stuff. I had at least two people place orders for the wrong stuff and let them take back their orders for the correct stuff, once they realized their mistake. Thankfully before they fired the ammo.

It is why they are called mistakes and not planned events.

The dealer was at fault, now he knows to trust no one including the dealer, that should have known better, and to always double check the ammo actually inside the box against the barrel markings.

This is a great topic and I love the pictures, clearly worth 1,000 words. Thank you for sharing.

Wow, I think you have a shooter on your hands buddy. Looks pretty good to me! Scotty

Great shooting!

I never would have guessed a belted .300WM case would have fit in a RUM chamber! Add another one to the list.