I have killed many deer with my rem.788 in 308 and have never had to track them more than a few yards.Just bust those shoulders and they aint going far,they may try to scoot away using their hind legs but most will not move due to the shock to the spine transfered from the shoulders.I also have had the same results with the 30-06,6.5X55,243 and others.Good shot placement is more important than caliber the 30-30 has long been a favorite of many woods hunters and will continue to kill many deer at reasonable ranges for the cartridge and will drop them in their tracks with a good shot.Good hunting!