Nope, never. I've been to many local level matches at Harvard, Marshfield, Old Colony, Monument Beach, Bass River, Cape Cod Fish and Game. But I've never been to one where they actually check all your stuff.
I shoot CDP (big surprise) and my reloads are 230gr plated over 4.4gr Titegroup. I've chrono'd it and a few of my rounds were just under 718, out of 30 rounds or so. Most of them were over 725. So fingers crossed!
Honestly I probably won't shoot another large match like this for a long time. $160 holy shit. And it's gonna be a loooooong day. We're leaving here (near Sagamore Bridge) around 4:30am Sunday. Tomorrow morning I'm out the door about the same time to go duck hunting. A few days ago my wife goes "So wait, you're leaving before sunrise on both Saturday and Sunday this weekend?!!!".
Wasn't a big deal before we had a toddler and a baby. Treading on delicate grounds here. Haha.