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T. O'Heir · February 20, 2019, 02:22 PM

CCI 350 primers are magnum primers. That alone can cause a slight increase in pressure. H110 does not require magnum primers though. Mind you, 22.4 isn't the current Start load for a jacketed 240 either. 23.0 is. Close enough that it doesn't matter.
"...data come from a Speer manual?..." Irrelevant. Only the bullet weight matters, not who made the thing or what or how it was tested.
'KSI' is kilopound per square inch. Nothing to do with reloading as it equals 1,000 PSI. KSI isn't used for gases either.

February 20, 2019, 02:22 PM	#22
T. O'Heir Senior Member Join Date: February 13, 2002 Location: Canada Posts: 12,453	CCI 350 primers are magnum primers. That alone can cause a slight increase in pressure. H110 does not require magnum primers though. Mind you, 22.4 isn't the current Start load for a jacketed 240 either. 23.0 is. Close enough that it doesn't matter. "...data come from a Speer manual?..." Irrelevant. Only the bullet weight matters, not who made the thing or what or how it was tested. 'KSI' is kilopound per square inch. Nothing to do with reloading as it equals 1,000 PSI. KSI isn't used for gases either. __________________ Spelling and grammar count!