You may want to purchase a different bolt baffle (the piece between the bolt head and the bolt body) with a long tail so that you don't need to stroke that bolt all the way back for a SA cartridge...
Regular headspace gauges should work just fine with a Palma barrel - its a little more snug, not a lot. Biggest difference is in the throat.
Factory ammo... depending on the bullet used... may end up jammed into the lands in an unsafe fashion in a Palma chamber. Using a Palma throat pretty much demands you handload, and/or be very careful with what you feed it.
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