Lamar,
I've been shooting swedes with reloads for a long time. I did blow one up, that was where I learned to weigh 4350 instead of throwing it off the measure. What a fiasco. Other than that I've never had problems with the '96, and that includes loads that flatten the primer.
That said, the most accurate load is not always the hottest load, and that's what the 6.5 is all about.
I have heard that the steel in the Carl Gustaf receivers had a bit of nickel in it (swedish steel) and was a little stronger than what went into the german-made rifles. I'll believe it when I see the engineering lab results.
In any case, I've had good luck with most 140 grain bullets and 44 gr of 4350. That's not a load that will hurt your rifle. I've gone to 45 gr. in my own rifles with no problem and could go higher I suppose, but why?
good luck!
jn