I recently obtained an Beretta A300 Ultima Patrol that will not feed from the magazine tube.

Once the tube is loaded, I have to press the bolt/carrier release button on the bottom of the receiver to release a shell onto the carrier/feed ramp so I can chamber it manually. During normal cycling, shells remain in the magazine tube.

This shotgun has a 03/2023 born-on date and has never been fired since original purchase. A friend bought it new in 2023 and it went directly into his safe.

I have fully stripped, cleaned, lubricated, and correctly reassembled the shotgun, and the issue remains.

Troubleshooting already completed:

• Verified the shotgun is clean and properly assembled
• Removed and fully disassembled the trigger group
• Thoroughly cleaned all trigger group components
• Inspected springs, pins, shell latch parts, and linkage for visible damage
• Lubricated pivot/contact points and reassembled correctly
• Reinstalled trigger group properly
• Retested feeding function after reassembly
• Confirmed shells remain in the magazine tube during normal operation
• Confirmed manually pressing the cartridge latch / shell latch releases one round normally from the tube

Questions:

• Has anyone else experienced this issue with an early A300 Ultima Patrol?
• Are there updated or revised trigger group, cartridge latch, shell latch, or feed linkage parts for early 2023 production guns?
• Any known fixes before I contact Beretta service?