Have put together a K98 Sniper clone using a Serb 24/47 rifle as a base. New barrel shoots well, trigger has been tweaked, scope mounted, all good. Except for one small issue. When the barrel heats the forearm wood weeps oil both top and bottom. Only seems to be on the exterior of the wood but I am wondering what the heck they used on this stock. Linseed? Anyone else seen this before? Does it eventually dry out?