The club where I shoot tolerates a loaded CCW, provided you don't touch it at the firing line.
In other words, they treat it as a separate function from shooting at whatever range you're using. (Shotgun, pistol, .22 rifle, high-power rifle.)
I haven't asked, but I imagine that proper protocol, if you just had to shoot your CCW piece, would be to return to your vehicle, unload and case it, and carry it to the firing line as any other gun. Load and fire during a "range hot" period, gun down and step away during "range cold".
Muzzles have to be downrange at all times, until unloaded and cased.
.30-06 Springfield: 100 yrs + and still going strong