Hornady has a new baby

[JWFilips]

For Me : the 6mm Rem just looked boring ( as a younger dude!) Probably was the better cartridge however!
But Man, just look at that .243 Winchester Cartridge
It looked like Marilyn Monroe as opposed to Twiggy!!
For me the curves were more to my liking!
Have alway been happy with a shapely cartridge ( & Women)

 

[Rick H]

.243W, 6mm Rem. two peas in a pod. I own a 6mm Rem 788 and like it just fine, but in spite of all the magazine writers debating and ohhing and ahhing about the advantages of the longer neck or miniscule larger case capacity of the 6mm over the 243. There is absolutely nothing one will do that the other wont. I consider either minimum cartridges for game the size of Whitetail Deer, and overkill for coyotes.

Yes, I have heard the tales of the bulletproof coyotes but honestly never found one that didn't die quickly with a decent hit from a 55 gr. expanding 223R within 300 yds or so. My 6mm has killed a number of Whitetails with 95-105gr. spitzers, but I still feel it is min. About perfect for Antelope though.

I think there is more variation in ballistics between individual rifles than there are between the cartridges. My brother's model 700Rem in 243. is the ballistic twin of my 6mm. I just burn a few grains more powder for the same velocity.

 

[popper]

On a youth cull hunt, 15 or so kids, most all 243 and all but one got deer and a bunch of big hogs.

 

[Ian]

That 1-8" twist imposes a pretty strict speed limit on castings--in the 1600 FPS ZIP Code in my now-departed 25/35 WCF with groove & grease designs. Like my rat-upper AR-15 with its 1-8" twist, this will be a redcoat-only rifle.

Nonesense!

Powder-coated wheelweights, 68 grains, 24 grains H335 = 2,908 fps average, 24" bbl:





Or use unleaded alloy and grease lube, just don't lube two full grooves with LBT Blue or it will take at least two foulers to walk in the group. Iirc this was about 2200 fps, Magnetospeed didn't read bismuth very well:

 

[RBHarter]

Barrel quality has a little to do with it . 2050 is about all my 1-8" will do with the NOE 225-55@62 gr but the 222 will give me 2640 . As soon as I find the tool the 1-9 will trade out . It's a better barrel but the 222 is 1-12 or 1-14 I don't remember now .

Everyone has a trick .
There's a 6.5" twist now for 223 . At 2800 fps it's turning faster than a 1-12 22-250 at 4100 which is about where jackets come undone . Comes out between 310&340 krpm. But that's not a thing we can't beat with a tougher bullet so I will quietly go back to my box .

 

[Ian]

Do what works for you is what I say. Slower twists=easy button but limit bullet weight, so choose what suits. 75 grains is borderline stable in a 9-twist .22 centerfire and my 12-twist SP-1 says no way, here's what scattergun groups look like but prints tiny with 50-grain Hornady. If you want fast, accurate, AND versatile, you need a normal twist and more tricks.

Why is it that I read about a lot of .22-whatever and some 7mm with cast bullets but almost no one loads them to any sort of velocity potential in the 24, 25, 26, 6.5mm, and 6.8mm/270 calibers? (Dan of Mountain Molds being a notable exception with his PPCs).

 

[fiver]

it's cause the molds for them suck.
the 7mm has maybe 2 decent molds, but about 6 different throat choices.
they also have sucky spotty gas check availability.
it could do a whole lot better.

you gotta remember bullet casters are like 3% of the 3%, and the go fasters are like .3% of the 3%.
in other words nobody cares enough to try, or to make a decent mold.

 

[RBHarter]

The 279-124 NOE gets nearly jacketed speeds in 6.8 , at least the 1 I had with the 1-10 20" 5R rifle gas .....the 16" 1-10 , 6 right Mossy carbine gas not so much .

I wish I had one of those 1-11" 7mm barrels ..... All 1-8.5 . I did get 2300 out of a 27-130 but it was paper patched and 141 gr at launch in a 7×6.8 .

I haven't started Dad's 25-06' yet but in light of it's poor performance history with long 120s and great showings with Sierra & Nosler Part 117s I think it's one of those 1-10"s that's really going to shine , I have an NOE 260-120 for it that won't chamber yet in the 257 R .

I've shot the 260-120 PP in a 264 WM but nowhere near it's potential . I was surprised at the ease of hits way out there . It was fun to shoot at 6.5-55 P+ but I didn't run cast there yet .

6mm just doesn't appeal to me .

 

[flint4570]

just what we needed another cartridge.

 

[358156 hp]

Along with some others I know, I'm almost certain to have a 6 ARC by fall. We're just waiting to give others a chance to fuss with it a bit to make our lives easier. The first things to be discovered by the reloaders will be the important stuff. The things you don't want to do.

 

[CZ93X62]

Ian--

It ain't "nonsense" for me. I don't PC, so I'm a lost soul without a road map. It's what happens for me with groove & grease bullets in faster twists.

I can see a 6 ARC upper half in my future, if the mag question is smoothly answered. Its ballistics are near-perfect for the coyote-sized muleys that live locally.

 

[Ian]

It's all a matter of fit and alloy. Unleaded bullets showed a lot of promise with just a gas check and some lube. Lamar was getting about the same groups as me, almost as fast, from an AR, with a 6Sb/4Sn alloy about 55-60 grains and no paint.

 

[Petrol & Powder]

It looks a .243 Win that will fit in an AR magazine and action. I'm not sure what it does that a 6mm PPC doesn't do.
Kinda like a short magnum that's not a magnum. Steep shoulder, the fattest case they can make that will still fit the action and a 6mm projectile.

If you took the AR platform requirement away, nobody would even look at that cartridge.

 

[Brad]

The cartridge doesn’t need to be anything special as long as the marketing is.
Not much different than fishing lures- they don’t need to catch fish, just fisherman.

 

[Petrol & Powder]

..............Not much different than fishing lures- they don’t need to catch fish, just fisherman.

There are some words of wisdom /\

 

[CWLONGSHOT]

I dont mind. Heck I LOVE new stuff and calibers!! But we all know that pretty much everything that there can be has been.

What I find or take issue with is the all fired enthusasium for nothing... The justification for ...ho hum preformance as if just cause someone says so its biblical fact...

I watched the Hornady uTube clips scowling at the screen as they claimed allot but proved and offered zero fact and proof of the escalated claims.

Youthful ignorance is a fine thing when its applied as a sponge to real knowledge. But when that "sponge" it preach in and tellin while quite Obvious to anyone who really knows exactly how much that they are NOT knowing. YET HAMMERING ON as to how great this or that is will be.

When it took me 5-6 videos JUST TO GET BALLISTICS, past some 25 ye old tellin me its better then this and walks all over that and its as good as this and right behind that... i was pretty much done even if they was giving away ten $$ bills I wasn't interested.

Now NOTHING AGAINST the caliber and if your a 24 cal fan and like the AR who got it better then you!! THAT is whats great. Options. 'MERICA!!!

CW

 

[RBHarter]

To get a .473 head in an AR 15 they have to shorten a Savage case about 1/8" . There was a 25 that piqued my interest for a minute .

 

[Glaciers]

Yeah go fast, go far, goes right by me. Reinventing the wheel for just that little more this or that. Most cartridges out (the original older cartridges made in the mid of the last century, or just after) there with a faster twist and some throat work can do just about anything a guy needs. Of course you would need to make sure the rifle is built correctly, gloss blue steel, nice wooden stock, you know the way a rifle should look and feel. Military is a different story.
Now if your talking AR platform and ugly stuff like that, well I just can't get there from here. I might even have "one" somewhere in the back row, I think. I know, I know, but A lot is being lost or forgotten in my book. It's kinda like kids not knowing what a pencil is today

 

[Ian]

speaking of go fast, go far, what happend to the 26 Nosler "flat to 400"? I've never seen one in the wild nor ammo for it.

 

[Glaciers]

Just another flash in the pan