Sorry,
Don't have a link to the FN Testing.
That said, the original RFP for the US Army was that the gun needed to be able to fire 60K without any armoring or parts changes...including recoil springs.
The FN 509 was developed to achieve this standard.....then the RFP was changed during evaluation of the candidate weapons. (By the way, HK USP reaches this standard
easily!)
Down select was made to Sig P320 and Glock, FN claimed this was an unfair process (and are right). Glock submitted with a manual safety (often a requirement of Big Army Forces). Glock had funny grip angle and was beat on price by Sig P320. That said the RFP was for a "Modular Handgun", Sig P320 was realistically the only true "Modular" handgun submitted. A few teething problems, but now the P320 is performing spectacular in US Forces use. All branches have now adopted it. As the legacy Glocks in SOF age and wear out they are being replaced by Sig P320's (mostly M18 / variants or XSeries variants).
HK often advertises guns like the P30 and HK45 performing 90K torcher testing (they put the empty casings in a big glass container and put the gun on top / kind of cool) without any lube or recoil spring change. Very hard to beat that performance.
Not sure if the SFP-9 is able to reach those levels with out parts changes.
Rich
Yeah, the 320 is doing so well they're being dumped by LE all across the US and are being sued for guns that fire uncommanded after 2 separate "voluntary upgrades".
The FN testing is great, but they were one of the first ones to fail and be removed from US Army trials. The FBI has the most rigorous and comprehensive testing and the winner was Glock, even though their own RFP was practically a copy of 320 specs.