Re: Neck turning for accuracy international .338 lap mag
Mike, people just dont seem to accept your comments the way you intend, no matter how valid and accurate they are.
Neck turning is not gonna make a huge difference in the accuracy you will see. Its basically just uniforming necks to help you better control neck tension and/or fit your brass to your chamber ( just uniforming necks in your case).
Although if you have really bad brass you may benifit from it more than if you have really nice brass. Either way its a lot of work for not so much result.
I think its more benificial to tight necked match chambers but it serves the same purpose regardless of the chamber.
If you were to decide to do it you will basically need a neck turning tool, a way to hold the case, and a way to drive the case. Most people use their hand which makes the process more grueling.
You typically neck turn your brass when it is new and unfired, and usually you run a mandrel or expander through the neck to remove any dents and bring it near the size of the mandrel on your neck turning tool.
You will then set the neck turning tool so that it removes just enough brass to clean up or unify the necks, and do so all the way up to the shoulder/neck jucntion.
Then trim, deburr, clean and size the brass and proceed to load and fire.
Like mike said,
This process can be quite sophisticated when used in conjunction with trying to control all the other variables included in attaining a high level of accuracy, and to fully understand that, mike would have to write you a book because i surely dont get it.