The thumbhole stock lets your hand take part of the recoil. Also a stock with a comb that drops as it goes forward will help. Another help would be to get the biggest area possible on your recoil pad in order to spread out the recoil - ask for extra wood on the butt stock.
Go to http://cu.imt.net/~royalarms/Stocks.html and check out The Heavy Classic(my favorite)or The Montana Hunter. These are the two stocks I use for my heavy recoiling rifles I restock. Great company to do business with and GREAT WOOD too. Lawdog
As far as stock profile goes, I find a classic style straight stock, with minimal drop at the comb and heel, to work best for hard kickers. Recoil comes straight back, rather than up and back, like some Monte-Carlo styles.
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