7.63x39mm case varient
- Thread starter 762x39
- Start date
Varminterror
New member
Where have you been the last ~70yrs?
The 220 Russian was the first major x39 variant, which then served to parent the 6 PPC, then the 6.5 Grendel, aka 264 LBC, which parented various common wildcats such as the 22 Grendel, 243LBC, 6mmAR, 6 Turbo40, 6 Grinch, 6 Rat/FatRat, 6 PredatAR, 30 ARX, 20 Grendel/20AR, etc, and now, has parented the new 6mm ARC SAAMI standardized cartridge. Some are pushed back, some are blown forward, some are just necked up or down... but guys have been wildcatting on the x39 case in almost every flavor imaginable for a long, long time.
The 220 Russian was the first major x39 variant, which then served to parent the 6 PPC, then the 6.5 Grendel, aka 264 LBC, which parented various common wildcats such as the 22 Grendel, 243LBC, 6mmAR, 6 Turbo40, 6 Grinch, 6 Rat/FatRat, 6 PredatAR, 30 ARX, 20 Grendel/20AR, etc, and now, has parented the new 6mm ARC SAAMI standardized cartridge. Some are pushed back, some are blown forward, some are just necked up or down... but guys have been wildcatting on the x39 case in almost every flavor imaginable for a long, long time.
SlickerThanSnot
New member
lol
AWS
Custom Accessory Maker & Retired PM Staff
If your going to build on the case and go smaller than 7.62 you might want to use a 220 Russian or 6.5 Grendel brass as it used small rifle primers where most of the 7.62x39 uses large rifle primers. The developers of the PPC BR rounds thought it added to accuracy using sm rifle primers in that size case.