+1 on the 'plunk test' ..
The chamber on my Glock and CZ are shorter than on some of my other 9's.

If I use a 147 gr TC FP, I have to watch my overall length, as it will stick the bullet into the rifling on those two firearms. My max. OAL with the TC FP is 1.135.
However, with the 147 FMJ RN or a Xtreme 147 RN,, it doesn't jam into the rifling and OAL isn't as critical for me with the RN bullet.

And as someone else said, 9mm is a high pressure load . max loads and OAL can change pressure rapidly.

( I know you said 124 gr. ,, Just referring to OAL / bullets shape / chamber length )