Loading 147s long is much simpler/less problematic than 115s.
The 115s (yes, PD) are limited by bearing surface more so than the 147s.
I generally lengthen Leade in barrels (unless Melonite) to allow extremely long COAL for 9mm.
Even with 9mm having a tapered case, it’s possible to load the lighter bullets long enough that inadequate case tension becomes an issue. I’ve experienced bullet setback in chambering a round before.
Just a heads up to verify this isn’t an issue with your lighter bullet loads.
A true "Gun Guy" (or gal) should have familiarity and a modicum of proficiency with most all firearms platforms.
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