I’m reading that the 6.5 cm is better than the 260 rem only because heavy bullets must be seated deeper due to magazine dimensions. My 260 is on a Mauser 98 action so magazine size is not a factor. How much longer can I seat the 140 gr BT? My old eyes are too tired (s) to fool around with measuring with a marked dowel and wasting ammo testing when all I want is a reliable hunting load. Chamber and throat dimensions are pretty much standard right?