I would consider having your trigger polished and making it break at about 3 3/4 lbs. and then look at getting a set of the shooting sticks. You can make a holster for them and they are really lightweight. You will have time to use them for a longer shot but you won't have to carry the heavy bipods on the gun all day if you don't need them. Also a slightly firm hasty sling is effective at helping steady you.