The reloading book I have here at the office, for Hodgdon H-110 powder, calls for a Remington 2 1/2 primer (a large pistol primer) like the CCI 300 would be a replacement. The load data I have does not call for a magnum primer.
I use TiteGroup in my .44 mag reloads - and I use a large pistol primer - not a Magnum primer.
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