I've had a pile of 338's over the years (back to mid 70's) virtually all Winchester mod 70 of one flavor or another and Rugers. All shot just fine EXCEPT the one that I lusted after the most. All Weather Stainless Boat Paddle with sights. I wouldn't call it a "pattern" but it wasn't acceptable to me. Went down the road.
The recoil can be calmed by using the the Limbsaver. They make one for the boat paddle stock. Love them.