7 mm on the 8 x 68 mm magnum

[ann brezinski]

any onr know any thing about this wildcat?
saw some thing on another sight but lost the information on it.
gary b

 

[Hand Skills]

Looks like a pretty neat round, like a 28 Nosler lite. Most commonly known as the 7mm booboo I believe...

 

[yorke-1]

Looks like a pretty neat round, like a 28 Nosler lite. Most commonly known as the 7mm booboo I believe...

That's about right. I've seen a couple versions of it but they're all ballistically equal.

The 7mm Dakota, 7mm LRM, 28 Nosler and the 7mm-8x68 improved will all be in the same ball park. The only hitch to the 8x68 case is the small rim diameter. Some .535" bolt faces will work but it depends on the extractor. I use the 8x68 case to form brass for a couple of 375 Ruger wildcats and it will extract 90% of the time on a Savage action with weak ejection, and it's about the same on a Ruger 77 Hawkeye action. I know that the small rim does work well on bolts with a Sako style extractor.

 

[mustang58]

I have one of my own design and like it. Only draw back is mentioned here.

 

[User4302021]

any onr know any thing about this wildcat?
saw some thing on another sight but lost the information on it.
gary b

7mm BooBoo? Dave Tooley invented it.

 

[WildRose]

7mm BooBoo? Dave Tooley invented it.

It's an interesting round but if I were going to wildcat a 7mm today I'd use the .375 Ruger case simply because I love the case design.

In the 7mm's though I've yet to find a reason to abandon the 7mm STW. There are a few others out there that have similar performance but they just lack the cook factor of the STW.

 

[User4302021]

It's an interesting round but if I were going to wildcat a 7mm today I'd use the .375 Ruger case simply because I love the case design.

In the 7mm's though I've yet to find a reason to abandon the 7mm STW. There are a few others out there that have similar performance but they just lack the cook factor of the STW.

The 7mm BooBoo was an attempt at duplicating the 7mm Remington Mag ballistics in a modern unbelted case. The only source for 8x68s brass at the time was RWS.

Since this is some of the thickest and toughest commercial brass made, it handled the pressure with ease. The only draw backs being the expense of $1.50 a piece and the relatively short supply. The 375 Ruger case design was inspired, at least in part, by the 8x68s according to some sources I spoke to at Ruger at the time.

As far as the 7mm STW, I have never shot one. In principle, I loathe over bore cartridges. I have no problem dealing with trajectory, so I don't need the speed. To my mind, once you are launching the heaviest for caliber bullets available at 2,700fps to 2,900fps you are optimized for that caliber. If more horse power or wind bucking is needed, then a step up in caliber is the most appropriate response in my opinion.

But then again, I have never been attracted to fast cars or fast women either. So, just my opinion, it is what it is.

 

[Rich Coyle]

What! No fast cars fast women no fast bullets you need to see the doctor