IMHO we make a big deal about headspace because we can measure it with a guage. I prefer to shoot and inspect the inside of the case for an annular gulley just above the base. Even if the case doesn't blow out the presence of that gulley indicates the brass is stretching too much and headspace is excessive with that ammo. Regardless of what the guage says.
Anyway, chances of you getting hurt by a burst case, assuming you wear eye protection, are pretty slim in a 98 mauser type or any other rifle with gas vents and shielding. The worst casulty I've heard of was a friend who lost the tip of his moustache.
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