Home Forums Hunting & Shooting Hunter's Campfire 270AR SPR (New AR-15 cartridge coming this fall)

Well, since you brought it up (in no particular context) I'll bite. If your intended quarry requires 200+ grain bullets, then the venerable 06 has a marked advantage. But then WTF does Col Cooper know anyway? I guess he was a 308 "hater" wasn't he?

I spent a bit of time this year walking around on 6.8 brass that an oil-sheik paid for. Not at all impressed with the cartridge. The Grendel launches a great projectile...pathetically slow. The WSSM's have brass consistency/availability issues. I for one am glad someone is trying to finally produce a single-stack round that'll launch a 6mm (ideal, IMO) or larger bullet as close as possible to 3000fps out of a 20in barrel. I thank the gentleman for posting about it.

Rancho GFY.

It WOULD be like saying that if you OWNED and SHOT BOTH of them.

This is like saying you have a 308 and read about this new thign called an 06 and it kills WAY better than the 308. But you dont' own one yet and so on.

You're right, but anyone who has owned and killed with both would realize they are basically the same, especially when it comes down to deer sized game.

but it ultimately depends on how many people you've killed and a stupid graph..

crayons?

It depends on stupid alright, especially in your case, as you are quite stuck on it.

We aren't talking about heavy bullets and bears, we are discussing killing deer, remember?

How about that 7mm-08? Hard to take gun advice from a guy who bitched incessantly about how bad his rifle was, sold it, and with very little work became an awesome shooter.

Rolling, here..

PG, FOAD mofo.

Quite possibly in your own drool/bodily fluids, or it may not be that late yet in your AO, but maybe you got an early start?

Lets ignore the trolls and talk calibers and ballistics.

I agree. Why don't you address rost's post above that i quoted.

I think some of you guys went way off in left field. We are talking about ballistics and hitting power at various yardages. If you can't read a simple ballistic chart your in the wrong thread. You don't need any of these calibers or really need to have shot any of them to discuss a ballistic chart. If you think you do your in the wrong thread.

and has been pointed out claimed figures are often faster than real world figures, often cause they do all their testing for load work up in barrels longer than those found on production guns......so until someone actually puts the loads through a chrony from a production rifle its all speculation and the ballistic chart isnt worth the paper its not printed on.....

OK.

What velocities have you chronographed with the new cartridge? What barrel length, powder and COAL length did you use to attain that velocity?

When you shoot the new cartridge side by side with existing options how does the recoil compare? What buffer weight / spring combos have you tried? Is there a noticeable difference to the shooter in muzzle blast when compared to existing options, and what barrel lengths did you use to draw that conclusion?

Introducing a new cartridge and showing how it compares to other extant cartridges is one thing, allowing people to draw their own conclusions.

I've designed and had built a wildcat, and know for a fact that it didn't do anything existing cartridges already had well covered. I didn't go around harping on worthless ballistic charts (which mean diddly schit in the real world), claiming how much better my round was, especially before I had shot it.

Cartridges sometimes have issues, whether in feeding (as often happens with the minimum taper, sharp shouldered rounds) or with pressure spikes (such as with the 25 WSM). Until it's actually tested in the real world, it's just a theory.

People's problem with you is in part because you come on and say how much better your round is, without any real proof. Guys that have shot and killed a bit know how little difference there truly is between cartridges. They know how useless comparisons of Foot Pounds of Energy or whatever kind of made up rating system you can come up with matters in the real world.

If your proof of how much better a round is than another comes from a chart, I suggest you need to do a lot more shooting and killing. You need to test both in the field, not simply on paper. Otherwise, your proof is meaningless.

This is all kinda interesting. I've got the parts to build a 6.8 SPC, in fact both a Bison and a Daniel Defense barrel.

But fall is coming, and a higher priority is to see if I can get 130's up to 3200 fps, out of a newfangled 6.8 x 64

He's using a 20in and 18in barrels with a 1/11 twist to test.

The rounds double stack in the mag by the way and are not single stacked as someone said.