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What's the next greatest rifle chambering?

divingin said:
They seem to be pushing for that. I'm seeing quite a few showing up. 350/400 Legend, Bushmaster, 45-70/90/120; I realize a lot aren't new, but I'm seeing a lot more of these than I did before.

Ditto with the PRC chamberings, and the various re-necks of the Creedmoors.

Didn't the Army select the 6.8SPC as the new direction they're going? Or was that a(nother) flash in the pan?
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My understanding is new direction is the 277 fury with 80K psi. But, the 80K psi requires a stainless steel case head - it's a two piece case.
The civilian version is just a 6.8x51.
 
If the criteria of greatest chambering means superior external ballistics in string fire shooting at 1,000, the cartridge necessarily exists already, under the constraints of barrels and bullets we have.

The 6.5 Creedmoor completely misses that audience, narrow but enthusiastic, and I have seen it used by no one yet because it “too comfortably” avoids the two relevant glass ceilings of bullet integrity and barrel walking from heat. The penalty for that ease on the shooter and equipment is that it drifts more in the wind. Whatever your wind skills happen to be, you’ll shoot higher scores if you up-chamber.

We don’t have bullets and rigs yet that can remain as accurate in the last 10 string shots for the bigger cartridges that exist. Possibly with unlimited weight.

One could assume that the challenge is to determine what works the “greatest” in the popular 1.25” tube free floated, flat fore end stock at 10kg. There probably is some “greatest” cartridge, that varies on a sliding scale that is proportional to the body mass and tolerance of the shooter. So it still isn’t “just one greatest”.

Another question is when does the cartridge get so big that vibration inaccuracy offsets the gain of superior ballistics? In a vacuum, that aspect of shooting may gradually get worse from the .22LR onward. I think it is a fallacy to lay out all the several hundred cartridges from smallest to biggest and say that on either side of some, here and there, more accuracy is possible, so that it looks like a wave of accurate versus not. They are just small pressure vessels, they don’t determine accuracy.

Some could attain the same velocity, using less power, brass, or length than others, but we aren’t really worried about that in target shooting. In order for cartridges to affect accuracy, they would literally have to be designed in a shape such that they don’t each burn powder the same way, from one to the other, or are too difficult to produce alike. This is nearly impossible to envision in the single, bulbous chamber configurations we have.

If a person has nines from wind calls alone, as opposed to rifle inaccuracy, then they logically stood to gain from higher external ballistics. Any “greatest” contender is going to slot in below something that already exists.
 
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davidjoe said:
The 6.5 Creedmoor completely misses that audience and I have seen it used by no one because it “too comfortably” avoids the two relevant glass ceilings of bullet integrity and barrel walking from heat. The penalty for that ease on the shooter and equipment is that it drifts more in the wind. Whatever your wind skills happen to be, you’ll score higher if you up-chamber.
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I agree, but there are many people that benefit from Hornady's lineup. People are buying 6.5 PRC and there's also 7 PRC and 300 PRC, so it seem PRC is the new kid on the block. Somehow Hornady is able to win the hearts of shooters.

We also see 22 Creedmoor growing in popularity.

While it doesn't seem to be the most popular cartridge here for BR/PRS, Creedmoors are popular of all the cartridges in general. There's a lot of 6.5 Creedmoor shot by people here, both for target and hunting. Mainstream will most likely never be the most popular here with BR/PRS folks.

"next greatest" means a lot of different things to different shooters...still seems to depend on intention/use...just saying...
 
I really have come to like 6 arc. I tried it last year and didn’t take to it, but this year, I’m loving it. Gave up the chase for the 103-108 bullets and found a load with varget and 85 bthp game kings that shoots .2’s at 2880 fps out of a 20” bolt gun.

People knock it in a bolt gun but what other caliber can you run in an off the shelf rifle at these speeds with 6mm bullets on 29.5 gr of varget??

I’m swapping barrels on my sbr to a 12” 6 arc and going to run the same load in it and still should have decent velocity.

I had a 12” last year that I could push 105’s at 2500 fps so I’m hoping for 2575-2675 with these 85’s

They are very deadly on animals too.
 
davidjoe said:
If the criteria of greatest chambering means superior exterior ballistics in string fire shooting at 1,000, the cartridge necessarily exists already, under the constraints of barrels and bullets we have.

The 6.5 Creedmoor completely misses that audience, narrow but enthusiastic, and I have seen it used by no one yet because it “too comfortably” avoids the two relevant glass ceilings of bullet integrity and barrel walking from heat. The penalty for that ease on the shooter and equipment is that it drifts more in the wind. Whatever your wind skills happen to be, you’ll score higher scores if you up-chamber.

We don’t have bullets and rigs yet that can remain as accurate in the last 10 string shots for the bigger cartridges that exist. Possibly with unlimited weight.

One could assume that the challenge is to determine what works the “greatest” in the popular 1.25” tube free floated, flat fore end stock at 10kg. There probably is some “greatest” cartridge, that varies on a sliding scale that is proportional to the body mass and tolerance of the shooter. So it still isn’t “just one greatest”.

Another question is when does the cartridge get so big that vibration inaccuracy offsets the gain of superior ballistics? In a vacuum, that aspect of shooting may gradually get worse from the .22LR onward. I think it is a fallacy to lay out all the serval hundred cartridges from smallest to biggest and say that on either side of one, here and there, more accuracy is possible, so that it looks like a wave of accurate versus not. They are just small pressure vessels, they don’t determine accuracy.

Some could attain the same velocity, using less power, brass, or length than others, but we aren’t really worried about that in target shooting. In order for cartridges to affect accuracy, they would literally have to be designed in a way that they don’t each burn powder the same, from one to the other. This is nearly impossible to envision in the single, bulbous chamber configurations we have.

If a person has nines from wind calls alone, as opposed to rifle inaccuracy, then they logically stood to gain from higher external ballistics. Any “greatest” contender is going to slot in below something that already exists.
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From the way things are going with the aging population, it will be something with no recoil or very little.
 
I would like a rimless, reloadable, and small 20 cal, Something that would solve the 5.7x28 brass problems. AND a marketing program that would sell it to every rimfire nut so brass would be everywhere and cheap.
 
ebb said:
The 6.5 Creedmoor took America's attention by storm, but it's been a while since its introduction. Love it or hate it they make more match ammo great bullets and cases for a Creed than anything else. But I imagine some manufacturer is getting antsy to come out with something new. But I am uncertain as to whether the current scramble to make guns and components to keep up with demand will stifle a new introduction. But sooner or later some maker of rifles will want a bigger piece of the pie. What will be the new latest and greatest rifle cartridge to be introduced? Will it be another Hornaday offering or will someone else come up with it?
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It's going to Be, extremely Hard, to "Beat",.. the 6.5 Creed and 6.5 x 47 Lapua for, 800 & 1,000 Yard Accuracy unless, you go to, a 7 MM of some sort ( the .284 Win / Variants and the 7mm SAUM, come to Mind for, that ).
THEN, you HAVE,.. More, Recoil !
 
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Richard Jones said:
Did it?
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Watch Texas Plinking, 1,000 Yard, Steel Challenge and find Out,.. for yourself !
Season 3, shooter, #3 or, 4,.. gal named, Courtney ( Watch Her Group,.. "around", the Steel Plate ! )
Smacked Plate, on 4th / 5th, Shot, THEN she, Smack's the 5 inch Plate,.. on, her FIRST Shot !
Many shooters, have Won this, Comp with, the 6.5 Creed and EVEN using,. Factory Ammo !
 
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Idaho-Lefty said:
Watch Texas Plinking, 1,000 Yard, Steel Challenge and find Out for yourself !
Season 3, shooter, #3 or, 4,.. gal named, Courtney ( Watch Her Group,.. "around", the Steel Plate ! )
Smack Plate on 4th / 5th, Shot, THEN she, Smack's the 5 inch Plate,.. on FIRST Shot !
Many shooters, have Won this, Comp with, the 6.5 Creed and EVEN using,. Factory Ammo !
Click to expand...
I showed up to my range and my shooting buddy was shooting a cheap plastic factory Savage that he had screwed on an aftermarket 6.5 creed tube. He was shooting 143 or 147 factory (can't remember) Hornady ammo at the 300 yard target. I jumped in with him to go check the target. I was expecting 3ish inch groups. 3 nice little 3/4 inch groups ....all piled onto the mothball!!

AND....he was talking about finding a load for it!!! Now, I would call him a dumb bastard for even thinking about it, but..... I am the guy who took apart my Tuner 4 days before a match, so.....:rolleyes:
 
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