I'm new to this forum as well as reloading. I have a 110 Tactical in 300 Win Mag. I measure the clearance to the lands on factory ammo and it is .148. I loaded some dummy rounds up with .020 clearance and this is where the problem is. They won't fit in the magazine. They fit just fine through everything else. I also have a 300 Wby Mag and they fit the magazine just fine. I'm using 165 grain SST Hornady bullets. I've measure two ways. One with the Hornady gauge and the other with a dummy round, magic marker on bullet and then chambering it. Is there another magazine I can use. It is a hidden magazine( load through the top, unload through the top).

Wayne