Federal introduces 7mm Backcountry
- Thread starter mikeyb
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I doubt it as the last 300 m group i shot was a 3 shot 2.5 " c-c so its WELL on track for -MOA -Good enough for a hunting rifle !
I have my 190 A-TIPS loaded up now so we will see how they compare ? to the BC 190 gr speed RJ
What does that have to do with his question?I doubt it as the last 300 m group i shot was a 3 shot 2.5 " c-c so its WELL on track for -MOA -Good enough for a hunting rifle !
I have my 190 A-TIPS loaded up now so we will see how they compare ? to the BC 190 gr speed RJ
Edit; Surely he meant on impact...
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Not sure. The pressure standard for a cartridge is listed in SAAMI Z299.4. For .30-06 for example, the maximum average pressure is 60,000psi. Factory ammo will be at or below that amount. To change the operating pressure would be a can of worms (and a box full of disclaimers) most likely. The liability of someone firing that in an original Winchester 1895 for example could result in a dramatic and immediate disassembly of the rifle. The case material would resist "flowing" under the extra pressure, but the rifle itself would need to be proofed for that kind of pressure.
I think the lawyers would have a pretty big say.
Guns in North America are not proofed though?
Also you can buy 45-70 ammo that far exceeds SAAMI spec of like 28k PSI. You could do some serious damage if you used a Buffalo Bore "Magnum Lever Rifle" load in a Trapdoor Springfield or many other old designs.
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Jim runs that in his 30-06. He still has his eyes.
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I wonder what percentage of new whiz-bang cartridges actually become commercial successes given the vast array of overlapping and tried-and-true cartridges that have been around a long time? I still think 7x57 and 8x57 are excellent and effective for their intended limits!
How is 6.8 Western doing?
How is 6.8 Western doing?
I'd certainly be willing to get a barrel for it. Brings up quite a few issues, ammo availability for one, I already have enough trouble finding 7 PRC stock in local retailers. I do love the 7's though.....
I get the point of it for Americans, not so much in Canada. By the time this gets on the shelves we may not have anything left.
I get the point of it for Americans, not so much in Canada. By the time this gets on the shelves we may not have anything left.
You can look up the chart of proof loads on SAAMI's website as well, it contains all of the product codes used for proofing rifles (not that any of us could buy proof loads). That said, SAAMI is not a governing body and adherence is voluntary (hence Buffalo Bore). You should be able to verify the proofing of a rifle by looking for the proof mark near the breach, mandatory or not I think all of my current rifles have one? I'd need to double-check.
I'd entertain the idea of this. I bought a X-Bolt 7 PRC this year, the goal was not to reload for it. Welp Hornady's ammo sucks. Slow as honey in the winter. I know I could reload for it and get some velocity outta it. But if I can buy ammo for this and run a 20" barrel and get the same velocity, why even keep the PRC? If i wanted the kind of velocity i'm getting i'd have bought a 7mm Rem Mag.
Not saying this solves any problems but its a cool concept.
Not saying this solves any problems but its a cool concept.
They make this fancy cartridge called the 300 win mag. You should give it a look.
Seems to me if you're not interested in ditching the 30-06 for a 300mag then that 200fps really isn't all that important to you...
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.
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.
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