Home Forums Hunting & Shooting Custom Rifles & Wildcats The 7mm Mizzum

Anybody care to email me a drawing on the specs of the reamer you are using? I want to order one and dang sure want it to be "right". Send me a PM if you have access to one. Thanks in advance

They most certainly are

What my eye sight or the necks are longer ?

The case is the same length but the shoulder has been pushed back, the shoulder is sharper, and the body blown out a bit.

What's the difference between the MashBurn and the 284 Jarrett ?

7mm Remington Magnum ..........73.5 gr.
7mm Weatherby Magnum ..........78.0 gr.
284 Jarrett ...................85.5 gr.
7mm STW .......................98.3 gr.

The case capacity of my Mashbrun cases are about 4.5 gr. more than the Weatherby. These are case capacities to the base of the neck. From my experience with the Mashbun,it and the Jarret look to be the same or close at least in case capacity if not in form.

What's the case capacity of the 28 Nosler ?

From things on the net, it is +/- the same as the STW and less than the 7 MM Rem Ultra.

Per recent articles, the Nosler has a capacity of 99 grains of water.

Fully formed Mashburn cases (mine) held 90 gr H2O to top of neck.

As Docbill points out the Mashburn case has a longer neck than a 300 WM case. It is also very slightly more blown out than the 300 Win Mag. Helpful with long 7mm bullets in a 3.6" box(aka all Rem 700 actions;M70's can also be easily altered).

The Jarrett is based on the 300 Win Mag case as well. He purloined the Mashburn idea. He's just behind the times by a few decades....

Nice!!

I need to quit reading this thread!

Ben: Bad stuff...

I tried to quit but I caved pretty quick....

Scotty you strolled right into it. What did it take, one or two afternoons and the rifle was throwing knot holes with 160 AB's?

Just finished it up.

McMillan A3-5 black, tan, white-----33,33,33
Leupold Mark 4 ERT/M5A2 6.5-20 FF TMR
20 MOA rail

Haha Rick bad azz looking rifle!

NICE!

That is definitely the most contemporary looking Mashburn I have ever seen! It's a long ways from Page's Old Betsy, but I bet it reaches farther than Warren ever dreamed .


Anyone got a picture of Old betsy for contrast to Rick's rifle?

Don't show this to Mudhen LOL!

Beautiful rifle! However, it's not quite my cup of tea. Still thinking about the Mizzum--maybe after the .404 Jeffery is done and squared away...

Ben it'll keep you busy with a project...it has for me,and it actually works really well, too.

Bob passed these to me...

RC, that rifle looks FAST!

Thanks to Doc Bill for the pictures of Old Betsy and Scotty for posting.

Thought it would make an interesting contrast to Rick's new rifle, being as they are both chambered for the same 60+ year old cartridge.

Back then, Page used the "best" technology of the day for close to (over?) 400 head of BG animals world wide with this rifle,and the 175 gr Nosler semi spitzer Partition,started at 3050 fps with 73gr H4831...and out to 600 yards on a couple of head of game,as I recall a Greater Kudu and a Wyoming bull elk. Scope is a 4X Kollmorgen Bear Cub.

In contrast, and today, Rick is running a 195 Berger with H1000 at over 2900 fps,and shooting out to 1500 yards with the same cartridge, modern scope,and modern bullets. Distances Page would have thought impossible no doubt. Interesting that it still keeps pace with about anything considered current and up to date among long range cartridges,even if it is a wildcat.

Sounds like a wildcat that has stayed with the times....ample evidence that Art Mashburn did his homework,and Page knew a good thing when he saw it.

Maybe, as Doc Bill said, the best BG wildcat that never became a factory adopted cartridge. Which is OK,too because we can still use it today.


Rick you only have 399 animals to go with that rifle!