What is a Beretta SO4 worth?
£1,950
Median of 2 sold results, £1,600 to £2,300.
Too few sales to average
Only 2 confirmed sale on record, so treat this as a single data point rather than a market value. It will firm up as more sales are added.
Estimate against hammer
Each bar is the auctioneer's estimate. The mark is what it actually made.
What moves the price
The SO series is Beretta's sidelock line and the SO4 is the competition variant — a hand-detachable sidelock built for trap and skeet, and now one of the better-value ways into a genuine sidelock over-and-under.
They were built to be shot and most have been, heavily. Round count matters more here than on a boxlock Beretta because the locks are hand-fitted; a gun that has been apart and badly reassembled shows in the trigger pulls.
Prices are consistent, which is what makes this a useful page: our results sit in a tight band with none of the spread you see on English sidelocks.
Retail expectation: £2,500 to £3,800 from a dealer, depending on condition and whether it is cased.
Every recorded lot
| Description | Sale | Estimate | Result |
|---|---|---|---|
| P. Beretta A 12-Bore So4 Single-Trigger Over And Under Sidelock Ejector Single Trigger | 29 Jul 2026 Lot 1653 |
£2,000–£3,000 | £2,300 |
| P. Beretta A 12-Bore So4 Single-Trigger Over And Under Sidelock Ejector Single Trigger | 29 Jul 2026 Lot 1670 |
£1,500–£2,000 | £1,600 |
| P. Beretta A 12-Bore So4 Single-Trigger Over And Under Sidelock Ejector Single Trigger | 29 Jul 2026 Lot 1673 |
£1,500–£2,000 | Unsold |
Hammer price as published by Holt's Auctioneers. Buyer's premium and VAT are additional, so expect to pay 20–30% more than the figures above.