I partially seated a Sierra 125g FN HP bullet in an empty case that I had already trimmed to 2.030" and chambered it to check chamber depth, I am .050" short of the cannelure and measure COL 2.488".
I know it is important to crimp on the cannelure but as I understand it the bullet should be either in contact with the rifling lands or close to it (one of my buddies says .010 short of the rifling is ideal). What advice is there out there? Should I trim my cases longer (or rather not trim them as short) to engage the cannelure and lengthen the seated COL to engage the rifling? I only have one box of these bullets right now but I would like to give them a fair shake to see what sort of potential they have. Oh yes, the rifle is a Marlin 336.