I have a chart from an older magazine that shows case capacities for 7 brands of shells. Federal shells have the thickest walls next to military ones. I bought 500, once fired Federal shells for $50.00 from a police sniper friend that I want to reload. Does anyone have recommendations on load reductions when using Federal in place of Remington or Winchester shells. My loads would be towards the lower velocities listed in reloading books. Examples: 150gr at 2600fps