- Mar 23, 2017
Last night I worked on loading the 60 pcs of Winchester brass I got for the 375. I got some 255gr polymer coated bullets for T&B Bullets and some Lee loading equipment from Midway. I did the normal prep to brass debur flash hole , uniform primer pocket , and prepped case mouths. Not knowing how old the brass is I annealed the shoulders so no splitting on fireforming. I used a Lee universal expander to set a slight bell on the case mouth. Next up was sizing the bullets to .376” with a Lee bullet sizer , lubed them up with a little Lee Alox and punched them through. I’m using 20grs of Blue Dot and Fed 210 primers with this bullet. Charged , seat , and crimped with Lee crimp die. Fired a few and cases look good. 20 grs is running 1560’s fps.