Have a nice Stainless Carbine that I bought new in the mid 90's. Would like to improve accuracy as I was shooting it recently and realized it really isn't all that accurate regardless of what ammo I was using. Scope is a Mueller APV 4.5-14×40 AO and stock is a Houge Overmold. Not wanting to dump over $300 into it - just looking to make it much more accurate for plinking and ground squirrels out to 100 yards. Willing to send it off for massaging if need be.