Heres a few pics of 2 100g NBT's. The one on left is a bullet recovered from 800 yards. The one on right is recovered in the dirt bank after exiting a badger from about 75 yards away. The bullet weighed 41g and expanded to .635". The bullet from the bank at 800 yards weighed 49g and expanded to .490"
If I take the lead out of the one I recovered the jacket weighs 45 grains. I guess it's safe to say that 50% of the weight of this bullet is jacket. It's pretty crazy that the one from 800 yards slipped its core, I wouldn't have expected that. ~JT
Dirty Dogs... Down Dirt Cheap!!!
Nosler BT change performance at different calibers & weights based on what I've seen & read. Be sure to test bullet in your specific gun & bullet combo. 7mm and 30 cal bullets don't necessarily perform like 25 cal. [img]/ubbthreads/images/graemlins/confused.gif[/img]
My experience... and testing indicates that they pretty much do perform just about like the one that started this post. As long as it's a Big Game BT, and it's .30 Cal. or under... they do just about what the one in my test did: Retain about 50% of their weight, and expand to about 180%. The only one I've ever seen recovered from a game animal was a .30/165 fired out of a .300 Win. Mag. at around 3250. Bullet was recovered from a large Black Bear that was shot through both shoulders at 200 yds. It weighed EXACTLY 50% (82.5 grains) and the expanded diam. was about .55 cal. I'll tell you this much... that bear got absolutely flattened!!
Back when I shot a lot of the bigger calibers I tested some of the bigger BTs against the equal weight Partition in a test very similar to the one above. As I recall the result were a bit suprising. The BT didn't penetrate quite as far... but the difference was only about 10%. The weight retention was also about +10% for the Partition. I don't recall, however, shooting them into test media at some of the speed that I see on this board... I had no access to a .338 Edge, or a .300 RUM. Even if I did, you'd have a hard time convincing me to pull the trigger on one of those WMDs!! ~JT
Dirty Dogs... Down Dirt Cheap!!!
The 30 cal, 180g NBT sure is an elk/bear stopper. LIke I've said before, I laod this combo for 4 different guys and they use it on everything from antelope to elk and black bears. Finally found 1 bullet from an elk at 525 yards that was shot through both shoulders. It was about to fall out of the offside hide. The lead core was still intact, but fell out after I was messin with it. Expansion was great as usual, penetration was great considering it was shot through both shoulders. All the others have fully exited.
I've done wet newspaper comparisons with the 180g NBT Vs. 180g factory core lokt. The NBT retained more weight and penetrated a couple inches farther then the core lokt. They were both pretty much flattened to a pancake, although range was either 50 or 100 yards for this testing, cant remember it was so long ago. I still have both bullets though and can take pics and show them if anyones interested.
My point is this. Look how well the 180g core lokt has killed deer and elk. Thats all my uncle and his buddy use to use out of there 300 WM's. I couldn't get them to switch to a different bullet for nothing. Untill I showed him what a varmint bullet that 180g core lokt was!! If the 180g NBT is holding up better, why cant that bullet be used on elk?? I dont get it one bit how guys can say they wont even use them on deer. Beats the hell out of me.
I"m not saying the NBT is the best bullet for super high velocity cartridges, but for your standard and regular magnum cartridges, the heavier for caliber NBT's sure do work.
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Thats great! NBT's are usually tougher then most people think...I've run similar tests, but not soaked and I've never had problems with NBTs exiting shoulder shot deer. Granted I've limited experience with the 100g version, but I love the 115g NBT. I"ve killed deer from 50-600 and its alwasy exited for me through shoulders, I feel out of your AI, you might like it a little better.
Thats a very good read and test though, I enjoyed it! Thanks for sharing.
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I agree! Thanx for the test!
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