You need to measure your magazine and see what the maximum length that it will allow. Ideally you should measure the chamber/throat of your rifle and see what the maximum your rifle chamber will allow with that bullet. A lot of times the throat of in a barrel is cut to where it will allow longer, than what the book says, maximum length.

You can do all that and determine your own “load to” length, or you can adjust your die out a little and load to what the book says is maximum. If you take the second route, you need to make sure the round fits your chamber, at that length, and that the bullet is not contacting the rifling, before you shoot any.


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