I have 3 of them, 22-250, 6mm, and 30-06 all with the octagon barrel.
IMO they are worth around $1000 in excellent condition.
The .243 is the rare one maybe 2-300 more.
I really like them, very accurate and they lock-up like a bank vault.
The triggers are not bad but not great either.
Lastly should it ever occur, a periced primer will be a very memorable occasion.