Good way to get around the bullet slippage problem in semi autos is
When you set up resizing die, make it full length size but not expand the bullet/case mouth area. As long as you chamfer the case mouth and use Boat Tail bullets the bullet will expand the case mouth and provide enough tension without a crimp
Been doing this for years. If I feel a loose seat it becomes a fouler round. Worked through eight years international f class doing this
Thank you for the advice, but as ive said multiple times above the Issue ISN'T with my Handloads, this is with Hornady 140 ELD Factory Ammo