6MM PPC WHY is it the best/Most accurate?

[horsemen61]

Ok fellas I’m still learning constantly about our sport/hobby/passion/obsession


I stumbled across this little 6MM PPC in this article here

https://www.fieldandstream.com/the-worlds-most-accurate-cartridge/


So my questions are

1.) Why is it so accurate
1A.) What would a common load for it be bullet weight wise also what powder?

2.) Why isn’t it more popular/mainstream

3.) why aren’t factories chambering this in rifles

 

[Walkalong]

It started in the Benchrest community (Palmesano/Pindell Cartridge), and is based on the .220 Russian case. It quickly took over benchrest competitions years ago and is still a favorite for 100/200/00 yard competition.

Why is it so accurate? A perfect combo of case shape/volume/powder speed?

Not much factory brass, so not many factory rifles. Not any better for hunting than other options, not many folks who care about pure accuracy, spending big bucks on the rifle and shooting tiny groups at the range.

Other than those thoughts? I have no idea.

 

[old heeler]

Sako and Ruger both made 22ppc/6ppc rifle.

http://www.rugerforum.com/phpBB3/viewtopic.php?t=115780
https://en.wikipedia.org/wiki/Sako_75

Had Lapua not step in we wouldn't be talk about 6ppc as target. The old Sako 220 Russian brass dried then Lapua started making 220 Russian. case

http://benchrest.com/archive/index.php/t-86291.html

 

[Bcwitt]

Ppc 's are based on the 762x39 case. Not many of them are reloadable. Lapua brass has a case head configuration that allows it to yield around the case head, right where we look for separations. Kinda scary by reloading standards, but this was for competition only, w super tight chambers. It doesn't really do anything you can't do better w a 243. To get the kind of world class accuracy its known for, you would be looking @ far beyond production gun costs. You cant just cut a bench rest chamber in a sporter & expect same results.

 

[Varminterror]

It doesn't really do anything you can't do better w a 243.

Except use more than 10grn less powder and offer twice the barrel life, with easier load development (like dropping a bowling ball vs. juggling them).

But the PPC isn’t a stone many causal reloaders or folks who are not competitive benchresters really needs to turn over.

 

[AJC1]

The marketing says the 6mm arc is everything the 6ppc is but mass produced for the ar market. Baring the guns used in the application they are close in a lot of ways. If you seek accuracy but want factory ammunition the 6br is a lot easier proposition.

 

[Walkalong]

The marketing says

While I am sure the 6 ARC is a great little round, the 6 PPC is the accuracy king because it started winning Benchrest matches and everyone else turned to it. In other words, it took over in the field, not the marketing room. Yep, I'm sure the 6 ARC is excellent, but I'm not ready to crown it the accuracy equal of the 6 PPC. The mainstream round I would pick to chase that kind of accuracy would be the 6 BR, which doubles as a pretty good round out to 800/900 yards in many folks opinion (Some people shoot ti further), and since my Impact's bolt face accepts that case head, a new barrel is all it would take to shoot it.

I do want to try a 6 ARC in something though, just because, and the AR 15 is the obvious choice where it offers more than some other AR 15 compatible calibers than in a bolt gun where the sky is the limit.

 

[kmw1954]

I do want to try a 6 ARC in something though, just because, and the AR 15 is the obvious choice where it offers more than some other AR 15 compatible calibers than in a bolt gun where the sky is the limit.

At the range I work part time we have the only public 300yd range within 100+ miles. There we do have a couple F Class shooters and some BR shooters. So far I have seen everything from Dasher's, to Grendel's, to BR, XC, PPC and even a Win 243WSSM. Then we also have a few guys now shooting that 6mm ARC in AR's and my serious thought is to take a Savage bolt and rebarrel it to the 6 ARC just to see if it could be a Poor Mans BR.

 

[mavracer]

Claiming it's the most accurate because it dominates one particular distance is kinda misleading.
I'm quite sure that it's really not any more accurate than the 6mm BR, BRA, Dasher, Creedmoor.
Guys that chase .001" don't want any more recoil than they have too. They don't want to burn more powder.

If you're not chasing .001" and neck turning/reaming weighing your brass and all those things that BR champs do there aren't magic rounds that make up for that no matter what the guys in the gun rags say.

 

[AJC1]

Claiming it's the most accurate because it dominates one particular distance is kinda misleading.
I'm quite sure that it's really not any more accurate than the 6mm BR, BRA, Dasher, Creedmoor.
Guys that chase .001" don't want any more recoil than they have too. They don't want to burn more powder.

If you're not chasing .001" and neck turning/reaming weighing your brass and all those things that BR champs do there aren't magic rounds that make up for that no matter what the guys in the gun rags say.

That claim of ultimate accuracy I believe is limited to 200 yards where its handed to the BR. If an entire movement is shot with one particular clambering it becomes self fulfilling.

 

[Varminterror]

I don’t expect there’s any motivation for those which have built the altar of the 6 PPC to invite the 6 ARC into their lives, so it won’t gain such altar of its own...

but...

I can say I have witnessed firsthand certain cartridges are easier to develop loads than others, and I’m a believer that some designs just want to shoot. But between these two, I know I can’t point a finger at what one has which the other doesn’t which would trip that trigger, or not. 6PPC and 6 ARC are like a pair of twins, grown up to 45yrs old - Grown enough that “identical” isn’t really accurate any longer, but it still takes a refined review to discern between the two.

Maybe the safest statement to compare the two I can make should be this:

If you can’t get either of these to shoot small, it ain’t the cartridge.

 

[Walkalong]

If you're not chasing .001"

Actually they are chasing 25 shot aggregates to the fourth decimal. I got beat by 12 ten thousandths once. Although one could argue that is the same as 1.2 thousandths.

The accuracy nuts shoot Benchrest, and the pure accuracy nuts shoot 100/200 yard Benchrest. They try most every new thing, and if something was better, they'd use it.

But sure, we (THR members in general) can argue accuracy and what it really is all day long here, heck, we have.

 

[Walkalong]

Maybe the safest statement to compare the two I can make should be this:

If you can’t get either of these to shoot small, it ain’t the cartridge.

I don't doubt that for a minute.

 

[mavracer]

If you can’t get either of these to shoot small, it ain’t the cartridge.

In another thread you said
" I’d venture I would need to build 10 rifles of each and fire tens of thousands of rounds to even determine if any objective performance difference existed between the two."
I'd be willing to wager that the worst of one wouldn't out shoot the best of the other.
And I guess we're gonna have to measure in .0001" lol

 

[jmorris]

The accuracy nuts shoot Benchrest, and the pure accuracy nuts shoot 100/200 yard Benchrest. They try most every new thing, and if something was better, they'd use it.

But sure, we THR members in general) can argue accuracy and what it really is all day long here, heck, we have.

That’s it, in a nutshell. Create another round that is consistently more accurate than the 6mm PPC at the game it dominates and the people getting beat will switch or continue to get beat due to their inferior accuracy.

No need to argue, just look at match results and records.

6MM PPC WHY is it the best/Most accurate?

Short answer is there have been many rounds before it and many after it’s conception, that don’t beat them at matches. Once something is more reliable than it at winning it will cease to be the best choice. As others point out, change the distance and it falls out of favor.

 

[kmw1954]

Yesterday I was working as RO on the 200/300yd range and my friend and mentor came in. He is developing a new load for his new 6mm XC2. He actually only shot about 14 rounds total. He brought his target back from the 300yd stand and one of the small orange bulls he was shooting at had a 3 shot one raged hole. All I could do is be envious!

 

[GooseGestapo]

As to op’s questions,
The 65gr bullets were most accurate.
H322 was THE powder. I believe there is a VitaVouri powdered that’s quite popular. VV135?

Tolerances is the key.

A friend had a Sako 75 (3-actually- a.17Rem, .22PPC, and .6mmPPC.)
I developed some amazingly accurate loads in all three.
He successfully shot some club level bench rest competition.