The 150's will have a bit less felt recoil than the 180's. The '06 should have a bit less recoil than your Mosin and it won't be quite as sharp. It will be more of a push than a smack. Shoot it and find out.
You can always add a pad if you're not comfortable with it. A good recoil pad is important for extended shooting sessions. For walking in the woods and taking a shot now and then, not so much.
“If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that ye were our countrymen.” ― Samuel Adams
Last edited by CA357; 07-27-2011 at 11:43 PM.