I'm looking to mount a bipod on my Winchester Model 70 Super Grade. Purchased Atlas bipod with picatinny mount and Caldwell Pic Rail Adapter (156716) but the sling swivel on the Model 70 is slightly countersunk in the stock so the pin won't align to mount the adapter. I've ordered a barrel mount but wondering if anyone has installed an adapter on their Model 70 Super Grade for a bipod and if so, please let me know how you did it! Thank you.