Thread: The next flop?

What's the ammo going to cost in NZ ?

Can you get dies and suitable powder to equal factory ballistics ?

So who's crunched the numbers on the speed, powder type required, burn rate and projection on realistic barrel life ?

All the reasonable known barrel life projection data is based on 60k psi or thereabouts
It might be safe to assume there is an exponential increased decay at 80k psi

The case design could be an innovation in the market if applied to cartridges more useful than a 7mm magnum style. Lots of questions to be answered about practical use. Could be interesting in concept.

From the articles I've seen barrel life will be similar to a 280 and it appears normal actions will be just fine.
The case material is what allows for the pressure.

May not be for the reloaders, at least not in the short term.

Look at the Spomer YT item on it

Originally Posted by Pommy

Pretty much. Seekins have just released a new rifle with a 3 lug bolt and "exotic materials" on the bolt head so that it can handle hot rounds like 277 Fury. I don't think there's any way you're putting these into a plain steel 2 lug Tikka, Remmy, Howa.

Oh well. It's not like 7 PRC isn't already a sufficiently big sledgehammer.

Local hunter has 6.5 PRC which he only brings out in the roar for big wet stags. Reckons it has too much boogie for the rest of the year which he hunts with 6.5CM. Has fancy Swaro glass on top of BOTH.

Originally Posted by akaroa1

What's the ammo going to cost in NZ ?

Can you get dies and suitable powder to equal factory ballistics ?

I spend an easy 5000$ plus into my hunting each year, gas,travel, upgrading gear etc ( im only on disability(23,000per year) and 150$ pw part-time work) yeah so when i buy ammo at 110$ for 20 that lasts me 2 sight in sessions and 10 animals minimum on the ground it mean NOTHING at all its the absolute minimum cost when everything is taken into account gas, vehicle costs, food, fuel, gas cannisters, ice, missed income from time off from paying work its a shitload more then the 1 or 2 bullets fired at 5$ each to secure the meat, trophy - animals taken so even if they are 15$ a shot who gives a shit still the cheapest part of the equation

Originally Posted by gimp

The case design could be an innovation in the market if applied to cartridges more useful than a 7mm magnum style. Lots of questions to be answered about practical use. Could be interesting in concept.

Yep imagine if we could fill a 7.62x39 base (6.5 Grendel,6 arc) case up with fast pistol powder to sky rocket the pressures and get a 130-140gn doing 6.5 creedmoor velocities or better

Could make for some mighty compact rifles (howa mini size action for example )that will match much bigger rigs that use the older technology
The case technology is certainly very interesting
Watch this space

Originally Posted by Pommy

Pretty much. Seekins have just released a new rifle with a 3 lug bolt and "exotic materials" on the bolt head so that it can handle hot rounds like 277 Fury. I don't think there's any way you're putting these into a plain steel 2 lug Tikka, Remmy, Howa.

Oh well. It's not like 7 PRC isn't already a sufficiently big sledgehammer.

Any PRC, WSM, or SAUM case has more bolt thrust at 65kPSI than this new cartridge at 80kPSI. Actually a bit less. A lot 2 lug Tikka in these chamberings.

Will be interesting if cases are reloadable.

Originally Posted by gimp

The case design could be an innovation in the market if applied to cartridges more useful than a 7mm magnum style. Lots of questions to be answered about practical use. Could be interesting in concept.

steel cased 223 3000fps with a 75 in a stubby barrel

Originally Posted by Stocky

steel cased 223 3000fps with a 75 in a stubby barrel

You can do that with a 22" barrel now. So not a huge gain. My 74 Targex are 2970 fps from a 20". Or are you thinking 3k from a 16" barrel?

Originally Posted by Carbine

I spend an easy 5000$ plus into my hunting each year, gas,travel, upgrading gear etc ( im only on disability(23,000per year) and 150$ pw part-time work) yeah so when i buy ammo at 110$ for 20 that lasts me 2 sight in sessions and 10 animals minimum on the ground it mean NOTHING at all its the absolute minimum cost when everything is taken into account gas, vehicle costs, food, fuel, gas cannisters, ice, missed income from time off from paying work its a shitload more then the 1 or 2 bullets fired at 5$ each to secure the meat, trophy - animals taken so even if they are 15$ a shot who gives a shit still the cheapest part of the equation

In fairness to play devils advocate, if people dont shoot a bunch to the point where ammo costs dont matter do they have any business wanting calibers that realistically only benefit them beyond the range they practiced and are competent too? ie what improvement does this give most guys that they could utilize vs say a 7mm08.

A big boomer does not make one a marksman if fact the opposite may be true.

Originally Posted by Tahr

You can do that with a 22" barrel now. So not a huge gain. My 74 Targex are 2970 fps from a 20". Or are you thinking 3k from a 16" barrel?

Your 74s might be doing 3k from 13 or 14 at 80000psi!

Originally Posted by Tahr

You can do that with a 22" barrel now. So not a huge gain. My 74 Targex are 2970 fps from a 20". Or are you thinking 3k from a 16" barrel?

Yuck keep your extra inchs to yourself!

I do 2850 in an 18" now its plenty but a little more is always nice or the same but shorter.

GRT suggests 80kpsi would give 2950ish in a 16" with my same powder and bullet. Thats what I mean as well as higher pressure helps a more complete burn with slower powders in short barrels (according to GRT and QL) if you think it matters.

It also suggests that 2970 in a 20 is already in the 65-70kpsi realm. In most bolt actions pressure signs are often not seen until 70-80kpsi often higher

Originally Posted by Stocky

Any PRC, WSM, or SAUM case has more bolt thrust at 65kPSI than this new cartridge at 80kPSI. Actually a bit less. A lot 2 lug Tikka in these chamberings.

Will be interesting if cases are reloadable.

Fair one. Though speaking with a gunsmith, the number of Tikkas with setback on those lugs from hot reloads suggests that they aren't as reassuringly over-engineered for those cartridges as you'd like. I wonder if the Savage rifles will be ordinary Axis II's, 110's, or if they'll be something new.