250 Grain, .30 Caliber Bullets

[tamalpias]

Originally Posted by Brother Bob

Oh heavens yes! I was just thinking about all the bear threads and the .30 caliber fans. If I only had one rifle, and that rifle was a .30-06, and I loaded my own, and I was dirt poor, and I lived in Alaska, and I.........I think you get my point. LOL! If and when I go on my Alaskan brown bear hunt, I'll take a .338, .375 H&H, and/or a .458. I'll also have a .44 magnum revolver strapped to my side. I've read enough stories and have seen some pretty graphic pics of what happens when someone doesn't take enough gun to a bear fight!

You either must be a very strong guy or you are planning on hunting on very flat lands. There is no way I can carry so much weapons on me.

I would think either one of your rifles should do the trick ad if you hunt with a buddy have him carry a back-up shotgun or revolver. Hunting in terrain where you will have to hump up hills and such that is alot to carry. My friend and I was on a California Dessert Bighorn sheep hunt a few years back and carrying our gear plus a rifle was alot of work. Albeit I have never been on a grizzly bear hunt I would guess having a hunting partner to help you lighten up your load would be a good idea.

Originally Posted by just_a_car

You don't understand it huh?... Well, if you had read the post just above your's, you'd see why someone would want a heavy bullet. The calculation for kinetic energy is as such:

E = 1/2 * mass * (velocity)^2

So, if you want to keep your velocity sub-sonic (i.e. less than about 950fps), then the only way to get a higher muzzle energy is to raise the mass of the projectile.

Admittedly, you have to watch your pressures when doing this, but it used to be common (way before my birth, prior to WWII) to work up "reduced loads" for pleasure and cost savings (less powder per round = more rounds per pound of powder).

I'm personally considering anywhere from 180-240gr (likely going to settle on 180-200gr) bullets for the sub-sonic 7.62x39 to shoot out of my AES-10.

Well I am no math whiz but what you say is true. A heavier bullet carries with it more kinetic energy than lighter bullets to some degree. Case in point my 40gr. 22-250 has a muzzle velocity of 4,100fps. while my 55gr. has a muzzle velocity of 3,600fps. At 300 yards out my 40gr. bullet slowed down to around 2,000fps while my 55 gr. still flies at around 2,500fps. That translate to roughly a 1 inch higher trajectory at 300 yards for the 55gr. bullet vs. the 40gr. Learned this only after I had handloaded both types and gone to the ranch to shoot them off.

[Phil Lozano]

If you are looking at big bears, something to consider, my post at the bottom of the page.

Link - http://www.gunandgame.com/forums/big...-energy-3.html (bullet weight vs speed and energy)

Best,
Phil
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Professional Hunter ~ Tanzania