I am looking to buy a O/U (1) 425 browning 30" (2) 525 browning 30" I have found one of each both about the same condition. The 525 chambers 3" is the only difference in the two guns. Gun (1) $1200.00 gun (2) $1350.00 I shoot some trap no competition. Every now and then sporting clays and I dove hunt. I have no ideal in the difference between these two guns except $150.00 and one chambers 3" shells which would come in handy during turkey season. WHAT'S YOUR OPNION DON'T HOLD BACK!!!!