Um not entirely correct, but I guess it depends on how you look at it as well.
You can buy brand new bullets here from the site owner paul for 50 BMG 1.50 a pop. 338 Lapua from pual or anywhere else around 3.50 a pop. I suppose we could argue the quaility of the round. However bottom line just like you said your buying more lead to toss and more powder to toss it, thus reloading it is still more expensive any way you look at it. As long as your reloading though the costs are so much less to shoot, But either one is still pricey for the average shooter.
Thanks for the kudos on the purchase selection.
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