Not with that particular rifle, and not with that junk 7/8-inch Jap scope, which Army Ordnance technicians had to shim to even hit the 6-foot cotton bales then used for recovery of bullets, not a usual concern of those AMTU military balisticians.
Nor has anyone caught what was special, particularlar and unique about that particular model of 6,5mm Carcano, and why that would be of importance in the November 1963 timeframe, or to anyone who knows what *Mexican match* rifle ammunition is and how it got its name.
But I'm pretty certain I could have made those shots- or longer ones, with a more serious rifleman's piece of equipment, with [say for instance] a pre-'64 [obviously!] Winchester Model 70 rebarrelled to 6,5 carcano. It took a little attention to the bolt face and extractor as well, but the question might be why that particular cartridge/bullet combination...? And remember, still true now as it was then: only accurate rifles are interesting....
-archy-/-