6PPC cases

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  • Last Post 03 January 2010
billwnr posted this 14 December 2009

I'm shooting over the winter with some benchrest guys who aren't so fortunate to shoot cast bullets (aka the jacketed bullet crowd).

My 6PPC cases are kinda old and I need replacements.  The replacements are made from .220 Russian cases.  I started thinking today and wondered who the heck shoots .220 Russian and why doesn't Lapua make 6PPC cases what with all the BR shooters shooting that cartridge.

Anyone else here who “dabbles” over on the dark side.

You know.... those guys just go out and buy their bullets and don't scrounge around for linotype.  It sure is sad how they have to live.

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mcskipper posted this 14 December 2009

I don't shoot this cartridge, but do a lot of case conversions. My book said that the 6 PPC could be made from 220 Russian. The 220 Russian can be made from 6.5X54. 6.5X54 can be made from 270's. 270's from 30-06. I'd make it from a 308 Winchester or 35 Remington. Someone with a small hobby lathe could do the case head work. The rest is sawing & annealing. The neck will need to be turned.

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JetMech posted this 14 December 2009

billwnr wrote: I started thinking today and wondered who the heck shoots .220 Russian and why doesn't Lapua make 6PPC cases what with all the BR shooters shooting that cartridge. Good question. At a buck a pop for 220 Russian cases, when they know everyone is forming them into PPC cases, is horse hockey.

Bruno's has them, supposedly, although I'm not sure what a 220 Russian, neck turned to 6mm, or 220Russian/6mmPPC means. http://www.brunoshooters.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=BSS&Product_Code=6PPCNT>http://www.brunoshooters.com/Merchant2/merchant.mv?Screen=PROD&StoreCode=BSS&ProductCode=6PPCNT

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Reg Lingle posted this 14 December 2009

I don't know of anyone who ever really wore out a Lapua 220 Russian case. They may need anealing, but i have used mine for a long time. I'm thinking of converting my 6PPC to a lead burner this winter with a new throat etc. Reg

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billwnr posted this 14 December 2009

Reg, my necks are breaking off and sticking in the dies and/or the rifle chamber. “They” say it's because the cases are worn out.

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Paul Pollard posted this 14 December 2009

If you just get 6mm mould, those case should last a long time. I'm assuming you want Lapua. I have some Rem 7.62x39 cases (50 at least) which have been formed as 6ppc, which I could send you. They're pretty new.

Also 50 Lapua which some have been trimmed back to 1.490. I'm not going to use those because of the shorter length. Could send you those, too.

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Reg Lingle posted this 14 December 2009

Thanks for the offer! I am giving up, at least for the time being on my 6x47 (222 Rem Mag necked up to 6mm) as I can not seem to get decent groups with a well bumped bullet from LBT. So I have a 6mm Hart 13.5 twist and a Hart action that I thought I would do this winter. I have to sell some suff to get money for a reamer. I already have a throat reamer that I bought this past winter and bought new cases from Ron Hoehn that I bought then also. I have a 6mm International Ruger #1, pretty wood, for sale and I am going to sell my whole old collection of Am Rifleman, - - - if you know of any body that is interested let me know. Again thanks for the offer. Reg

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deltaenterprizes posted this 15 December 2009

The benchrest shooters that I know just neck size the cases only .001", just enough to hold the bullet in the case.

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CB posted this 18 December 2009

billwnr wrote: Reg, my necks are breaking off and sticking in the dies and/or the rifle chamber. “They” say it's because the cases are worn out.

Bill anneal the cases! The necks may have gotten brittle and are causing the problem.

A bunch of us here are taking 6BR cases, sizing them to 6PPC and turning the base diameter in a hobby lathe, a lot less work!

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Duane Mellenbruch posted this 18 December 2009

Jeff Bowles wrote: A bunch of us here are taking 6BR cases, sizing them to 6PPC and turning the base diameter in a hobby lathe, a lot less work! Wow, can you really do that?  6 BR base is .470 and 6 PPC base is .444 just in front of the rim.   Duane

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billwnr posted this 18 December 2009

I've heard from one of the more “learned” members that the potential reason Lapua makes .220 Russian and not 6PPC is because the 6PPC's are “hotrodded” and some loads are run to 70K PSI. If the cases are altered from .220 to 6PPC the liability to Lapua is negated. There would potentially remain if a factory 6PPC case was run to high pressure and it failed.

For why I don't anneal the cases I have. They are old. I got a bunch of used cases when I bought the rifle 2 years ago and when using them in the first two matches, I noticed that they had inconsistent neck tension and some chambered harder than others. I also didn't know if they were shot the same amount of times.

I have a neck expander and mandrel for my “Pumkin” neck turner on order from Don Neilson. I purchased a box of 100 .220 Russian cases last year, knowing I'd have to form new 6PPC brass at some point.

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B R Shooter posted this 23 December 2009

As an alternative to Lapua, Grafs has PPC cases with their name headstamped I believe.

I doubt you could run a BR case into a PPC sizing die. There must be something missing....

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Tom Acheson posted this 23 December 2009

Have been using a 200-round batch of Lapua 220 Russian cases reformed to 30 PPC for 5-years in CBA BR matches. Primer pockets are still tight and never have damaged a case. I'm guessing about 23+ firings per case. The load is a 185-grain CB at about 2050 fps.

The R-P 7.62x39 and Lapua 7.63x39 cases use a large primer.

Tom

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CB posted this 23 December 2009

B R Shooter wrote: I doubt you could run a BR case into a PPC sizing die. There must be something missing.... Maybe they're forming 30 BR from 6 BR brass and turning the rim down to fit a PPC bolt face so they don't have to buy a new bolt, only thing I can figure.

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B R Shooter posted this 24 December 2009

pat i. wrote: B R Shooter wrote: I doubt you could run a BR case into a PPC sizing die. There must be something missing.... Maybe they're forming 30 BR from 6 BR brass and turning the rim down to fit a PPC bolt face so they don't have to buy a new bolt, only thing I can figure. Now that is done quite often, done it myself. I shot a 30BR in my PPC boltface rifle by rebating the case heads, and it works great. Rebating the cases isn't that hard to do.

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Tom Acheson posted this 24 December 2009

Thanks to a note from Duane, I dug out my sample cases. R-P is the only maker that uses the small primer (I said above they didn't, sorry I screwed that up). The samples that I have of WW, PMC and F-C show that all of them use the large primer. When I was fooling around with the 7.62x39 in an MOA hnadgun silhouette handgun (1990) there was intense interest in using a small primer so the round would be “just like the rounds the BR guys use” and R-P was the case to use so you would be “in the know".

Thanks Duane!

Tom

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billwnr posted this 24 December 2009

rebating cases on 6BRs is not making 6PPCs. It would take a herkin strong press to squeeze the BR web down to a PPC web.

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CB posted this 24 December 2009

And a herkin strong operator to do it. Didn't say it was turning 6BR into 6PPC just took a wag at what was really being done.

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billwnr posted this 24 December 2009

I shoot two different .30 BRs. One is on the BR boltface and the other is on the PPC boltface. On the PPC one I have to turn down the rims to the smaller PPC rim. Dave Kiff machined a cutter to do that.

The PPC gun has two barrels. One is the .30BR with the rebated case. The other is a true 6mm PPC.

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hammer47 posted this 02 January 2010

My 6PPC's in my Panda rifle shoot just fine off the .473 <308 cal> boltface.  Why would you have to turn the rim down???

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CB posted this 02 January 2010

We're talking about doing it the other way, turning 6 or 30BR rims down to fit a PPC bolt face.

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