Remington 115 grain jhp "green box" early on.
Switched to Federal 9BP (not the LE +p+ version) for a few years probably around the mid nineties if I recall. Eventually switched over to the above mentioned 124 grain Gold Dot.
All the ammo listed fed well in the P7M8. The Gold Dots, which were loaded a little hotter, also heated the gun up quicker. This is something that would be exhibited in longer firing session with the P7M8.
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