It may not be entirely the fault of your ammo. Some M1911 (and newer pistols) simply do not feed SWC bullets well. The barrel might need a "throating job" where the feed ramp and chamber edges are smoothed and polished.

What you CAN do before thinking it is your pistol that needs modifying, is pay absolute attention to your loading procedures:

1. Bullet seating dept and COL may have to be adjusted for improved feeding. Generally, SWC bullets need longer COL for good feeding.

2. Flare cases just enough to seat bullets without shaving lead. Crimp enough to straighten out and remove the flare. Use a straightedge to check cases for straightness.

3. Use the barrel removed from your pistol for a cartridge gage: each and every loaded round should drop fully into the chamber and fit easily. If they don't, your case sizing, bullet seating, or crimping may be faulty.

Remember that the loading manual COL figures are merely GUIDELINES, and are not necessarily absolute values. It may have to be adjusted for best function in YOUR pistol. As long as the loaded rounds fit your magazine, and feed properly in the pistol, that is what matters.

Let us know how you make out.