The 8400 is the next size up.84M is smaller comes in 243,7mm-08, 308.8400 will get you the 300wsm,7mmwsm,270wsm and the new 325wsm coming out this spring.They do shoot great and are very nice rifles,I really like my 308 84M.They have nice wood too.Get one it will quickly become a favorite.I highly recommend them.