I've been using 165 grain 7mm Sierra GameChangers (Tipped Game Kings) in a 7 Mashburn since they were released in August and finally killed an elk a couple days ago with one.

Not a lot of problems with getting them to shoot acceptably. I right now live in a very windy part of the country and I've noted group sizes reflect the wind. The bullets don't seem very finicky with regards to seating depth. Here she is at 300 before first elk rifle opened:



And this past week at 100 to verify zero before I drove out of town:



I did miss an elk with a shot in October; my buddy shot first and the elk I was preparing to shoot moved just before I shot and all I saw was the back end of a group of elk after that.

This shot was 80-100 yards away (I didn't range her because she was close), broadside. Not a really tough challenge for a bullet but the Sierra performed well. The cow is decent sized. And she will be delicious!



Entrance. The wound looks bigger than actual size because there was some blood that colored the hair at the entrance.



Exit.



She dropped at bullet impact. Good internal damage to lungs; I didn't do much of an autopsy because it was -1 degree F at the time and I didn't want to keep playing around in the snow. The shot was a little high, I aimed center of chest but she was uphill quite a bit from me and I could have shot lower due to the angle. A dead elk is a dead elk!

Nice. Congrats on some fine eating.

Kind of looks like the 300 yd plate at Otto Road?

Congrats on the kill, I was just thinking looking at the pictures (before I got to the end of your post) that it looked damned cold!

Congratulations on some good eating elk meat.
Those bullets worked great.

I'm thinking about trying some in a 6.5
Have a good day.

Thanks for the report Joelkdouglas.

There was no bullet failure! Congrats!

Otto Road is right on!

And you know that wind tunnel between 300 and 400...that tunnel always throws me off!

Sierra's Customer service would like to hear this inimagine

Still hilarious!

Congrats on the elk Joel! Wished I was there with you buddy! Always like to hear about the Mashburn counting coup! Ol Bobby guides those bullets for us. I’m glad you got us back on the board.

Seems like the Sierra isn’t too darned bad!

Thanks.. Nice to hear the Mashburn is still dropping them..

Congrats, that’s some good eating right there!

That little guy gets lots of punishment, the three copper colored hits on the head in this pic are my 127gr LRXs while checking zero.



Wind tunnel between 300 and 400, and usually dead at 500.

Out of curiosity, what area were you hunting? I wind up spending most of my time in 7. Was your cow in a herd when you found her?

Hopefully you weren't out hunting when it got so cold on the first, I was driving out to Hill on the morning of the 2nd watching the truck thermometer bounce around from 20 deg to -12 deg and all points between, helped along by a healthy wind of course.

Thanks Scotty! I can’t imagine how excited you would have been when you saw those damn snowmobiles!

Man that elk is gonna be great eating.... BIL shot a big Whitetail Buck this year at 375yds here this year with same bullet in a 7mag. Dead on it's feet went maybe 30yds.

Congrats

I got a Utah cow depredation tag, near Henefer UT. They were herded up but we still had to find them. Pretty area and the cow depredation tags are (I think) a really good value. And I can still get 2 Wyo tags (assumes reduced price for one of them) and get a UT cow tag.

Heck yeah, that’s a mode of transportation I haven’t gotten to use yet on the elk mountain!

The ole regulator range?????

The same, I don't shoot at the cowboy matches though.

Never know who you might meet on that range.

Especially coming up on the Governor's Match!

The game changer on deer is darn good too.

Pics coming. 130gr 6.5 in the Creed.