340mag, are you loading the 150 Hot-Cor's?
YES IVE LOADED AND USED THESE FOR DECADES
http://www.midsouthshooterssupply.com/item.asp?sku=000211605http://www.handloads.com/loaddata/default.asp?Caliber=270%20Winchester&Weight=All&type=Riflemostly loaded over H4831 or WW760
I load a good many for the guys hunting out of our camp, and while I prefer the 35 whelen with the 250 speers for elk, personally Id have to admit Ive seen a great many mule deer and several elk have been taken with that load and most with a single hit!
don,t get hung up on velocity just get the most accurate load
these are the bullets most of the guys in my elk camp use and I can,t remember single bullet failure
cal .277..speer 150 grain
http://www.midsouthshooterssupply.com/item.asp?sku=000211605cal .30...speer 200 grain
http://www.midsouthshooterssupply.com/item.asp?sku=000212211cal .338 hornady 250 grain
http://www.midwayusa.com/product/76...iameter-250-grain-spire-point-box-of-100cal .358 .speer 250 grain
http://www.midsouthshooterssupply.com/item.asp?sku=000212453cal .375 hornady 270 grain
http://www.midwayusa.com/product/93...diameter-270-grain-spire-point-box-of-50cal .458 remington 405 grain.
http://www.midwayusa.com/product/16...rnment-458-diameter-405-grain-soft-point