I am gonna start shooting the 100g NBT at 3350fps from my 25-06. I know it will be a great dual purpose yote/deer bullet. Just curious as to your thoughts on how far I should limit it to deer? 500yards or 600 yards? Its a pretty accurate combo 2" at 400y, so putting it where it needs to go shouldn't be a problem.
Under good conditions it does a good job at 500. I have shot more deer with a Roberts and a 100 NBT than any other combo. My friend shot a 06 100 NBT at 3400 and it killed like turning off a light switch. At closer range dont expect to find much more than some jacket frags and a little blue tip [img]/ubbthreads/images/graemlins/grin.gif[/img] Once it gets past the on side ribs its all over.
My hunting buddy shot probably 8 or 10 deer with the 25-06 100 gr BT at ranges from 50 to 400 yards and got some nice kills but also had some deer run quite a ways when the bullet basically disintegrated in the chest cavity. He was not completely satisfied with the performance and switched to the Remington 100 gr Corelokt. These bullets held together better.
Now that I also have a 25-06, I'm going to load up some 110 AB's for both of us. They should perform well like the Corelokt but with a better BC. I just wonder how well the BT would perform on a quartering shot where more penetration was needed.
Are you thinking that the BT would expand better at lower velocities for the long shots? Have you considered the 110 AB? Just some thoughts.
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80% of my shots at deer are 200+ yards, so I'm not to worried about the bullet breaking up. I"m just mainly looking for 1 bullet to do everything I want, fairly cheap. I've worked up an accurate load with the 110g AB, but feel its a little heavy for deer, and expensive for targets and coyotes. I coulda stuck with the 115g BT, but the 100's shoot just a tad better. I've also got a great 117g SBT load, but its not as accurate as the range increases. So kinda looking for just 1 bullet for everything...
Years ago, when I was a young man, Hunting Magazine writers would tell us that we needed 2000 ft-lb of energy for Elk and 1000 ft-lbs for deer. Years later it changed to 1500 ft-lbs for Elk and 1000 ft-lb for deer remained the same. Many will disagree with my personal opinion but here it goes:
Given that conditions are right and precise shot placement is not a problem, I believe that 500 ft-lb will take any deer and or antelope with not a problem. Like wise, 1000 ft-lbs is all you need for an Elk. Yes, I agree that more energy is better and preferable, but you can do with these figures. That said, your 25-06 with 100 gr. NBT at around 5000' of elevation would produce just over 500 ft-lbs at 1000 yards. The 115 gr. NAB would definitely be a better choice as you would know, much higher BC, better bullet that would hit closer to 575 ft-lb at 1000 yards, assuming 3200 f/sec MV at the given elevation. Since I know that most would disagree, I'd like to know if there is any one that would concur.
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I certainly agree with your thinking on the energy requirements; with making allowance for the ”shot placement is everything” rule. My personal opinion is that in worst case scenarios the bullets should be resilient enough to inflict sufficient damage on the targeted vital organ(s). To me, a perfect bullet would be capable of penetrating the onside shoulder and the minimum would be at least sturdy enough to break onside ribs, with both cases allowing for decent expansion. I’m not exactly sure of the figures, but I think 1000 ft. lbs. For elk and 500 for deer/antelope would be more than adequate. As far as the reliability of the 100-grain, Nosler BT, I have some doubts about its effect if it hit a shoulder; but otherwise, it should be an efficient killer. JMHO