I own three Springfield 9mm's: XD, XDm, and an XDs. I use the same round in each, a Precision Delta FMJ-TC 147gr. The OAL is 1.135. The plunk test shows I can go as long as 1.15, so how can your 115 gr HP be too long at 1.05?
What am I not understanding? I suppose a truncated cone might be...