FWIW, Every gun I get (new or used) get an overnight soak in my mix (50/50 mineral spirits/Marvels Mystery Oil) before I shoot it. New guns usually come with a heavy rust preventative type oil and you never know what has been used on a not so new gun. I've seen metal chips/shavings come out of brand new from the factory guns. So, for me, the first shots from a new to me gun are always from a clean gun...
Not an expert here, but I just brought my brand new P95 home, cleaned it with Hoppes and a Wal-Mart cleaning kit...real good. I have fired about 250 rounds of WWB 115 gr. and about 50 rounds of RWS 125 gr. without a single hiccup. I am waiting for some 147 grain as I hear they shoot really well from this weapon.
I shoot Wally 147 gr hollowpoints. Shoot to POA. Tried 6 brands before I chose 147. My sons P-95 shoots 115/124 to POA. Experiment with several brands,weights. No failure to feed or fire about 2000 rounds with clean guns & correct magazines. JBR
Not wanting to bring superstition into play but if my p95 ever failed me on even one single round I would probably collapse from shear utter shock and disbelief and pinch myself to be sure I wasnt having some random self doubt nightmare in which ruger customer service would prob foot the bill for psyc evaluation for even letting such a thing cross my mind. Dont take your gun to a Machine shop when its backed with such a proactive and knowledgeable service department. They enjoy earning thier salary and though I do have other brands of weapon, there is no doubt which one will step up to the perveribial plate if and when the time comes. If anyone doesnt share that confidence, hit a rental range for a quick reminder. Never a bad idea to jogg the ole noggin occasionally with some old fashion appreciation of steadfast quality. If your not a frequent shooter this simple excersize might just distinguish life and death.