Hunting wild boars with a 45/70 rifle: I need an advice

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Salvatore
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Hunting wild boars with a 45/70 rifle: I need an advice

Post by Salvatore » Tue Oct 10, 2006 9:06 am

:mrgreen: Hi, i'm interested to realize good 45/70 cartridges for wild boars hunting, using 540-525 cast bullets and Swiss nr2. What load do you suggest? And what speed do you think it is possible to reach? Are LRM primers better than LR primers? My rifle has 24 inches barrels. The tipical hunting distance is 55yrds. Thank you very much in anticipation :D
Salvatore

Brent
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Post by Brent » Tue Oct 10, 2006 9:25 am

Salvatore,
I think you will find a lot of things will work. Were I you, I would look for a bullet that is a bit narrow in the front so you can slide it far into the throat of the barrel even when there is fouling from a previous shot.

I do not think you need a bullet that is that heavy either. 450-475 gr is plenty with room to spare. Then load all the powder you can put in there, try it without compression, and then gradually add more powder and more compression (seat the bullet to the same overall length). What ever is accurate will be more than powerful enough. You will get velocites between 1100 fps up to maybe the mid 1200 fps. That is plenty for what you are doing.

Good luck and think about a paper patched bullet
http://www.iastate.edu/~codi/PPB/PPB.html

I almost forgot - primers are not going to matter much for that kind of shooting but I like the Winchester large rifle primers - not magnums.

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Salvatore
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Post by Salvatore » Tue Oct 10, 2006 11:00 am

:D Hello Brent, thank you very much for your advice. You're very kind. My intention is to obtein 1475 ft/lb @ 55yrds at least using black powder only. This is the reason why i prefer heavier bullets. What you think about? Ciao! :mrgreen:
Salvatore

Brent
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Post by Brent » Tue Oct 10, 2006 11:15 am

Salvatore,
I don't think you NEED that much energy, but if that's what you want, more power to you (bad pun too).

For a 540 gr bullet, you will need 1160 fps to have about 1475ft/lbs at 55 meters. Probably doable. With a 475 gr bullet, you need about 1260 fps which is very doable with your rifle. (I'm estimating a ballistic coefficient of .375 for the 540 and .300 for the 475 gr bullet).

I use the calculator at http://www.eskimo.com/~jbm/calculations/traj/traj.html to do the calculations....

I'm not much of a fan for using energy as a metric of killing power, but then nothing else works much better. Anyway, I think you can get what you want easily.

More important will be a very very blunt or flat nose on the bullet and very soft lead - pure lead even.

Brent

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Salvatore
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Post by Salvatore » Tue Oct 10, 2006 2:30 pm

Brent wroteCOLONSalvatore,
I don't think you NEED that much energy...

More important will be a very very blunt or flat nose on the bullet and very soft lead - pure lead even.

Brent
How much energy do you think i need? :roll: An italian wild boar is often under 220lbs in weight. Thank you again :wink:
Salvatore

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Post by Brent » Tue Oct 10, 2006 2:36 pm

Salvatore, how much you need as a minimum is hard to say, but personally, I think 500 ft/lb when it hits the target is enough. 1000 is more than enough for a 350 kg elk or even a bigger moose.

Brent

zrifleman
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Post by zrifleman » Tue Oct 10, 2006 11:57 pm

Your 45-70 loaded with 530-540 gr bullets at 1200 fps has almost twice the knock out power of a 180 gr bullet going 3000 fps in a 300 Winchester Magnum, according to Taylors formula for killing powder. Many consider this formula more accurated than ft lbs of energy. Your 45-70 is more than adequate since it was very effectve on countless thousands of American Bison.

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Salvatore
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Post by Salvatore » Thu Oct 12, 2006 4:01 am

Thank you very much! :wink:
Salvatore

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