I was given a nicely sportized 03 Springfield reciever recently and know they generally consider 800k serial #'s and lower to be unsafe. Mine is in the 815k range. It has been nicely drilled and tapped, with a really nice high polish blue. It has obviously been together in this form due to some raceway bluing wear.
Is there a general consensus that this would be safe? If I did build something would most likely be a low pressure round.
I know failure rates were very miniscule, and this action has most likely been used up until several years ago, but wanted to get a few more opinions on it. I've built many rifles, just never messed around with 03's.
"The change in heat treating was instituted between serial number 750,00 and 800,000 at Springfield and by serial number 285,506 at Rock Island Arsenal. Rifles manufactured after these serial numbers are referred to as "high numbered" receivers and are commonly stated to be safe to shoot."
At 815k and per generally accepted serial number ranges, you have a double heat treated 03 and it's in the "high" range. You should be fine.
it has been perplexing me will a 308 chamber clear if reamed to 300 win short mag?
308 Win, case length = 2.015, base-to-neck = 1.7118
300 Win Short Mag, case length = 2.1000, base to neck = 1.8027
300 Win Short has a fatter body, less body taper, sharper shoulder angle. It should completely clean out.
Bigger question is "in what"? A Mauser? Short Magnums are tricky to get feeding in a 98. Unless it's a true "short action", 30'06 take-off barrels are plentiful. And no, a 30'06 won't clean out a 308 chamber, unless you set things back a thread or two.