Federal introduces 7mm Backcountry
- Thread starter mikeyb
- Start date
- Location
- Fraser Valley, B.C.
The outdoor life article mentions RCBS working on dies but it takes multiple attempts to size a single case. Definitely going to be interesting to see.One of the (minor?) talking points of this 7MM Backcountry is that it's a .30-06 diameter case and therefore increased mag capacity is an option vs competing magnum cartridges. Another was that apparently muzzle brakes become more effective as pressure goes up, which may be where the "lower recoil" claim is coming from. Edit: Since it burns faster burning powder and therefore less volume for the same velocity, there is less "ejecta" or powder being pushed out with the bullet and this should also reduce recoil. High techy
Also as far as reloading - I watched the Backfire video on it and he reports that they are working on getting reloading equipment available but it would not me "imminent"; in other words... don't hold your breath. Apparently sizing these cases may not be all that difficult because it will have very little material flow, unlike brass. The case won't stretch as far so you don't have to size it back down very far.
He mentioned a list of rifle manufacturers that are supposedly planning to chamber it, some of the bigger names were Savage, Christensen, Weatherby, Fierce, Gunwerks, among others. Will be interesting to watch.
Looks to me like a lot of hassle for the sake of a shorter barrel but if we could use cans here it might be a bigger deal.
B
Without a doubt.
I know of no other group of enthusiasts that piss and moan so loudly when new products are brought to market for the buying public to purchase of their own volition.
Those bastards at federal, how dare they offer a reloadable case with a safe working pressure of 80K!
Hornady just did a podcast on barrel cleaning, the topic was mainly about barrel life though
They showed how barrel life changes from max psi to -10% reduction in pressure. It was about 20% different in life IIRC. Boosting PSI by 25% over "max" won't do any favors for barrel life! Won't be an issue for hunters though
They showed how barrel life changes from max psi to -10% reduction in pressure. It was about 20% different in life IIRC. Boosting PSI by 25% over "max" won't do any favors for barrel life! Won't be an issue for hunters though
Yes, the Nerve of them at Federal......
Whats to discuss, you covered all the talking points....
It was only 140 years ago there was only black powder, 30k psi was high pressure, then 40k was high pressure when smokeless came out, moved on to 50k, then 60k and now we are already into 65k, seems to make sense we will move on to 80k psi, in another hundred years we could be laughing at 65k
Forgive me if my understanding of physics is poor.
Could increasing the pressure of larger cases to 80k and using slower burning powders in these stronger cases produce some real lightning bolt cartridges? Let's set aside barrel life for a minute.
If this is the case, has anyone alerted weatherby?
Could increasing the pressure of larger cases to 80k and using slower burning powders in these stronger cases produce some real lightning bolt cartridges? Let's set aside barrel life for a minute.
If this is the case, has anyone alerted weatherby?
- Location
- Saskatchewan
I'm about as Fuddy as they come, and I'm intrigued. Jack O'Connor predicted this development back in the 1970's. It took this long for the concept to come to commercial development, no doubt because of difficulty forming commercially competitive cartridge cases that can actually handle that much pressure. If we could hunt with suppressors in Canada I'd be shopping for one. As it is, I'm satisfied with my long barrel 7x64 rifles.
There are several rifle manufacturing companies who are producing or going to be producing rifles for said cartridge.
I wonder how Weatherby is going to spin its 7mm Wby Magnums as being better ?
Weatherby is on the list of manufacturers planning to chamber rifles in this new round so I'm not sure how they could say too much against it.
One article predicted 2000 rounds before a loss of accuracy... sounds generous to me but even a thousand rounds is beyond what 90% of shooters will put through one in a lifetime.
1000 rounds = $4000 in ammo
If you do that in 2-3 years you're shooting a LOT and can afford a new barrel
