Different Caliber - Similar Ballistics

[tjen]

Oldtrader3

I like lost of your post and agree with you the bulk of the time. Hope to hear from you in the furture with good spirt. (If we on a subject agree or not).

I do remember you saying my spelling was rude and offensive on another forum. In short personal attacks not relavent to the dicussion.

So lets keep this here on Nosler as a clean slate and move on and enjoy the forum. Forgive and forget OK. Do not expect any presonal information this is a public forum.

 

[Oldtrader3]

Don't care about your personal anything, just clarity Tjen. There is nothing to forgive and forget, it is an understanding issue.

 

[Greg Nolan]

Back on the bullet weight versus effectiveness, Elmer Keith and some other notable hunters on other continents used a different energy measurements. Foot pounds gives velocity a great advantage over weight and caliber. KO and pounds foot formulas take weight and caliber more seriously. The real energy of a big heavy bullet (400 gr. 45-70 for instance 400 yds 800 fpe) compared to a (100 gr. 257 Roberts 400 yds 800 fpe.) Same fpe. but I'll put my money on the 45-70 to take the bison down quicker and with less shots fired. I wouldn't want to take on a grizzley with a 257 Roberts.
I love hydrostatic shock's quick kill but I believe I need to use a large enough caliber at high velocity in case I don't hit where I want. That's where we get into the recoil issue.
Greg

 

[efw]

Y'all kinda alluded to it but I think one thing the OP missed... I think it boils down to the difference between terminal & exterior ballistics.

I am like others here... Like lighht fast bullets for deer, but no experience w/ elk so I can't say on those.

 

[SJB358]

I am still shooting about the heaviest bullets I can. Most of my rifles are set up with elk and bear hunting in mind. I don't shoot any ET's or TSX's or GMX's, so I am still running with AB's or PT's in my rifles and at the heavier end of the spectrum for them. I don't think many of us could tell the difference between a 150 PT or 175 PT out of a 7RM out to 400 yards ballistically, shooting off the deck in a field position. What I do believe is the heavier bullet will go deeper. The hard part for me at times is to see what angle an animal is actually positioned. If they are actually harder quartering to or away than I think, I like the ability of the bigger bullet to have a better chance of coming out. The added BC is a bonus.. I don't think may elk could tell the difference from a 150-160 PT, but its a bigger magnum, with the ability to move them big bullets faster than a little cartridge with less fuel. I think the 7RM starts shining from the 30-06 when you compare 175's - 180's. Most 30-06's are looking at around 2750-2800 with a 180. It isn't a big trick to push 2900+ out of the big 7 and it holds up a well as the range gets longer and the SD on that 175 PT is amazing. Just my thoughts. Bullets like the 210 PT seem to blow all the theories out of the water.. Still have yet to try them, but Jim insists I would be a changed elk hunter!

 

[sask boy]

I have been using my 270win with either a 130AB or a 130Part for everything for the last 5 years and I have had my most successful times shooting Elk. As most of us would agree that it is shot placement that really counts but sometimes it does not happen. I would have to agree with most that the heavier weight bullet will penetrate deeper so therefore be more efficient.
I am looking forward to this fall with my new 35 Whelen :wink: I will be shooting the 225AB even though I know that the 250gr would likely do a better job if the shot is a little off.

Blessings,
Dan

 

[SJB358]

Dan, the 250 PT or 225 AB should be about as good an elk load there ever was. With a good scope, I don't think most of us can outshoot a Whelen in the field. After seeing how well it shot out to 600 it made me like it even more. It does have some drop to it, but if you have a rangefinder and a good rest for the rifle, it will do about everything, plus, again, like you said, those big bullets will drive deeply when it gets there. Still packing 1500 ftlbs or more. I will be running the 225 AB's this year myself and hope to drive a few of them into an elk or mulie. Maybe even a poor old black bear if they hold still..