6mmPPC
- Thread starter pimlott
- Start date
For a factory 6mm PPC , fire form your brass, than necksize, lapua brass is about the best i found, H-322 or Varget are good starters, and pending your twist 1:12? 1:14 for the factory rifle usually a faster twist i find 80gr burger bullets the best most custom barrels like the 68g bullet.
neck size wit light neck tension, and just kiss the lands to 5 thou off.
My load for my factor rifle is 26.0 gr of varget touching the lands with lapua brass and a fed GM s primer, I use the wilson die system.
good luck
neck size wit light neck tension, and just kiss the lands to 5 thou off.
My load for my factor rifle is 26.0 gr of varget touching the lands with lapua brass and a fed GM s primer, I use the wilson die system.
good luck
Before you get into Seating depth...
George, This rifle sounds like it is a custom rechamber for a 6PPC. Thus it could have a tighter than standard neck dia. chamber. Many custom reamers are in the .262 to .263" dia. neck diameter range. A factory Sako reamer would be closer to .270 neck dia. If you can, you should determine the neck dimension of the rifle's chamber. It may be stamped on the barrel, or the owner, or gunsmith could tell you.
New Lapua brass would have .0125" or so neck thickness. Thus a loaded round would have .243 +.025 = .268 thickness. Norma brass is closer to .011 neck thickness and a loaded round would have a neck of around .265".
If it has a tight neck chamber, you will have to turn the necks to fit.
You should look for .002-.003" overall neck clearance for your first attempts. Not to tight, or loose, just right.
NormB
pimlott said:
George, This rifle sounds like it is a custom rechamber for a 6PPC. Thus it could have a tighter than standard neck dia. chamber. Many custom reamers are in the .262 to .263" dia. neck diameter range. A factory Sako reamer would be closer to .270 neck dia. If you can, you should determine the neck dimension of the rifle's chamber. It may be stamped on the barrel, or the owner, or gunsmith could tell you.
New Lapua brass would have .0125" or so neck thickness. Thus a loaded round would have .243 +.025 = .268 thickness. Norma brass is closer to .011 neck thickness and a loaded round would have a neck of around .265".
If it has a tight neck chamber, you will have to turn the necks to fit.
You should look for .002-.003" overall neck clearance for your first attempts. Not to tight, or loose, just right.
NormB
Last edited:
6mm PPC
Normb-I'm getting it from Epp's the gentleman at the gun counter discribed the gun with some knowledge. He had some Sako cases on hand an some Hornady Xp 65gr. I've been handloading since 1971 an I'm very carefull with weighing etc, I have a trple beam scale which I beleave is about the best there is.
When loading for something like a PPC I will listen to all, it's out of the realm of ordenary. Thanks George
Normb-I'm getting it from Epp's the gentleman at the gun counter discribed the gun with some knowledge. He had some Sako cases on hand an some Hornady Xp 65gr. I've been handloading since 1971 an I'm very carefull with weighing etc, I have a trple beam scale which I beleave is about the best there is.
When loading for something like a PPC I will listen to all, it's out of the realm of ordenary. Thanks George
Pimlott as Normb said check the cases to see if they are turned? and mic them after you load you first bullet, or best yet load a blank and try to chamber it , if its tight you need to turn them likely!
Normb's right on the money if its a custom cut chamber its likely tight and new brass wont fit!
Normb's right on the money if its a custom cut chamber its likely tight and new brass wont fit!
pimlott said:
George... with inside reaming you really don't have as easy control of final thickness. You need a bunch of different reamers to change sizes. A reamed finish is not as nice as a turned finish in brass cases anyway.
When outside turning, the thickness is determined by cutter adjustment. The easiest to adjust and use, in my opinion, is the turner made by K+M.
http://www.precisionreloading.com/KMProducts.htm
NormB
- Location
- Calgary, AB
NormB has it correct. Any benchrest caliber will be a tight neck chamber, and the case necks MUST be OUTSIDE turned in order to chamber. I have a .22 PPC, and use Lapua brass and a Forrester neck turning tool which utilizes a tungsten carbide cutting bit, making the turning operation considerably easier. Still, neck turning is a time consuming and fastidious process; cut-measure, cut-measure,.........otherwise you will trash too many cases.
