100% correct. I was shooting a 3” chamber Breda B12i. It’s one reason why 3.5” guns started to fall out of favour in IPSC here unless you’re shooting open or modified since, as you said, max 9 to start.
Here’s the nationals video from way back (pardon all the malfunctions, the Breda kind of sucks)
Thanks for sharing, lots of good shooting. Still use a Breda?