Didn't feel like editing the previous post....
Rate of fire and length of time firing matters too, even in a .50 cal.
A "cold bore" shot from an average barrel is going to have a different point of impact than a shot from a fouled, hot barrel. As the barrel heats up in an automatic weapon, the point of impact will continue to change.
Fire an automatic weapon in a long burst and you increase the chance of of a jam due to heat issues, mostly in the chamber. Barrels and chambers get REALLY hot, especially with higher velocity rounds.
I'm not sure these things can be modeled in a sim though. I can't remember having an machine gun jam without battle damage in IL-2 (maybe I am just lucky). I do know that in the old days of Secret Weapons of the Luftwaffe, firing a .50 cal in a turn pulling G's was rolling the dice as far as a jam went. My understanding was that earlier P-51 models had such problems due to the alignment of the MG's.
Splitter
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