Browning 742?? I think you mean Remington 742. If it's a browning it would be a BAR. I would not do a trade for a used Rem 742. The used ones are plagued with problems. If it's for a Browning Bar I would consider the trade if the BAR is in good shape. Your best bet is to sell your 44 mag outright and then buy yourself a new Remington 750 semi auto in 3006 or 7600 in the pump action.
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