Originally Posted by
bigcountry
Getting ready to work up a load for a BAR. I know stalkingbear(neil) always warned about using slow burners in a 7400 and said he saw damage to the bolt rails after time.
Anyone ever have damage using 4831sc or other slow burners in a BAR?
I can't imagine I would. I mean its made for factory loads. And most factory loads use medium to slower burning powders for speed.
Before we get to my post let me qualify.....
I really do not have experience with reloading for the BAR....so now my opinion.....and that's all....an opinion!
It's been well documented that the Military Garand should be loaded with H-4895 as that's what the original powder was for that rifle. It is said that a faster burning powder has less pressure at the gas bleed off valve.....hot loads with slower powders have been believed to damage the Garand rifles!
If one looks at Hornady's reloading handbook he notices that loads for the .30-06 are different somewhat from loads specifically stated for the Garand! Hornady has separate load data for the M-1 Garand!
No where in any of their data does it say that the loads for the .30-06 should not be used in the autos.....especially the autos that are also chambered for the .270!!!!! but Hornady specifically labels the Garand separately!
I know folks that are reluctant to load to 60,000+ PSI in the .30-06 chambered in their Remington pumps.....but they reload the .270 in that same rifle very hot!!!....and it makes no sense to me at all.....
I was once asked if one can shoot light magnums in the Rem pump .30-06....my reply...Absolutely.....it's still to SAAMI specs.....and the pump holds a cartridge way over the .30-06 in load data!....and IIRC Hornady does not recommend against it's use in the Remington auto!.....here's the real issue.....if it's true that light magnums are acceptable in the Remington (and Browning) autos.....then you should be able to load H-4831 and slower powders in those guns as well.....
Light magnums are not higher pressure.....they mere;y hold the pressure longer....
take it from there.
If I owned a BAR, I'd load it like a bolt rifle!