200 gr Speer in Model 99 / 300 Savage? - 09/15/09
I was reading the "Benoit Rifle" thread and started thinking of how nice it would be to have a "dark timber" rifle for elk: moderate to heavy bullets, fast handling rifle with iron sights or a low-powered scope, and capable of a quick second (or third, fourth, etc) shot. Being just a little short of the bucks to purchase a new firearm, I looked in the gun safe and realized I had the perfect rifle: a 1940's era Savage Model 99 in 300 Savage!
A quick search of available factory ammo showed that both Federal and Remington make 180 gr versions of 300 Sav ammo with a muzzle velocity of 2350 fps. Looking up the ballistics of that load (as published by Remington) wasn't very encouraging, though: Ft-lbs of energy drops below 1000 somewhere between 200 and 300 yards, and bullet drop is over 20 inches at 300 yards. Yes, I know that's far more than "dark timber" ranges, but where I hunt the walk to and from these dense patches offer some occasional longer-distance shots.
After some more searching, I saw in an old elk hunting thread a recommendation for a 165 gr Partition @2600 fps as quality elk medicine. I ran it through a ballistics program and saw an immediate improvement: 8 inches of drop at 300 yards (sighted 3" high at 100) and 1688 ft-lbs of retained energy at 300 yards.
I have some R15 on hand, so I looked in the Alliant reloading guide and saw that 44gr of R15 would move a 165 gr bullet at 2614 fps. Good news, I thought, I have both the bullets and the powder on hand to try this out.
But while I was checking out the 165 gr load, I noticed data for the 200 gr Speer (42 gr of R15 for 2379 fps). Being curious, I thought, "OK, it's heavier, that's good for elk, but how much handicap am I taking on with the slower muzzle velocity? How much will it shorten my point-blank range? What will the retained energy be at 300 yards if I get a long shot?
I ran the data through a trajectory calculator, and got a real shock. Apparently due to the long bullet's extraordinary BC (0.556) the trajectory of the 200 gr SP puts it barely more than 2 inches lower than the 165 gr Partition at 300 yards. Set to travel no more than 3" above or below line of sight, the 165 gr Partition has a point-blank range of 257 yards, while the 200 gr Speer SP has a point-blank range of 241 yards. Retained energy at 300 yards for the Partition: 1439 ft-lbs. For the Speer: 1688 ft-lbs.
So the question becomes: which load would you choose for your "dark timber" rifle? Would the added weight of the 200 gr Speer offer more penetration, break through more bone, do greater damage and put down elk more reliably than the 165 gr Partition?
Or am I just wasting my time chasing numbers while I should just go buy a box of Remington round-nose 180's and start practicing at the range?
A quick search of available factory ammo showed that both Federal and Remington make 180 gr versions of 300 Sav ammo with a muzzle velocity of 2350 fps. Looking up the ballistics of that load (as published by Remington) wasn't very encouraging, though: Ft-lbs of energy drops below 1000 somewhere between 200 and 300 yards, and bullet drop is over 20 inches at 300 yards. Yes, I know that's far more than "dark timber" ranges, but where I hunt the walk to and from these dense patches offer some occasional longer-distance shots.
After some more searching, I saw in an old elk hunting thread a recommendation for a 165 gr Partition @2600 fps as quality elk medicine. I ran it through a ballistics program and saw an immediate improvement: 8 inches of drop at 300 yards (sighted 3" high at 100) and 1688 ft-lbs of retained energy at 300 yards.
I have some R15 on hand, so I looked in the Alliant reloading guide and saw that 44gr of R15 would move a 165 gr bullet at 2614 fps. Good news, I thought, I have both the bullets and the powder on hand to try this out.
But while I was checking out the 165 gr load, I noticed data for the 200 gr Speer (42 gr of R15 for 2379 fps). Being curious, I thought, "OK, it's heavier, that's good for elk, but how much handicap am I taking on with the slower muzzle velocity? How much will it shorten my point-blank range? What will the retained energy be at 300 yards if I get a long shot?
I ran the data through a trajectory calculator, and got a real shock. Apparently due to the long bullet's extraordinary BC (0.556) the trajectory of the 200 gr SP puts it barely more than 2 inches lower than the 165 gr Partition at 300 yards. Set to travel no more than 3" above or below line of sight, the 165 gr Partition has a point-blank range of 257 yards, while the 200 gr Speer SP has a point-blank range of 241 yards. Retained energy at 300 yards for the Partition: 1439 ft-lbs. For the Speer: 1688 ft-lbs.
So the question becomes: which load would you choose for your "dark timber" rifle? Would the added weight of the 200 gr Speer offer more penetration, break through more bone, do greater damage and put down elk more reliably than the 165 gr Partition?
Or am I just wasting my time chasing numbers while I should just go buy a box of Remington round-nose 180's and start practicing at the range?