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Hey, I'm a brand new reloader, just built my first bench last weekend. I've only loaded some 9mm so far. I'm planning on loading some 308 rounds, and I'm curious about how a bullet comparator works. I've read that measuring to the bullet tip can be inaccurate because of manufacturing variables and that you can get a much more accurate reading from measuring to the ogive. But I'm wondering, if I have a COL of 2.800, but I'm measuring to the ogive, obviously the measurement that the comparator gives me is going to be much shorter than that. Since different brands of bullets are different shapes, lengths, tc. there can't just be a lookup table.. so I'm confused on how exactly you would set your COL to 2.800 when measuring to the ogive. Is it just about consistency, not nailing that exact COL? For example, seat one to a bullet tip COL and then check the subsequent ones at the ogive to make sure everything is consistent? I realize where the comparator really shines is using the case length guage to check where exactly your rifling starts in your gun. I'm not looking for crazy accuracy as these are being loaded for a Tavor 7, not a bolt action gun that I'm looking to get crazy accuracy with. I would also like this ammo to run in more than just the Tavor.
Thanks guys
Thanks guys