I have the same 3 you have, I use the vers 458 on big cartridges like 358 win, 444 marlin, 45-70... the extra volume and weight helps. I use the hybrid 45 on mid cartridges like 450 marlin, 458 socom... and the Obsidian 45 on pistol cartridges (44 mag, 45 acp, 10mm...). I would like to find a...