posted this another place but here goes again, just geta 10-32 bottom tap and drill out the current 8-40 threads and then tap for the new larger size then go to hardware store get box end allwn scres in a two inch length use hack saw and sanding station or grinder to shorten to correct length counting washers for free floating, then poof there you go free floated and stronger then ever and guess what your holes are not deeper but slightly very slightly larger and my accuracy is great 300 win mage 26 inch heavy best group at 100 yards what group .433 goto love that
randy