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Location: Missouri/Arkansas
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Wuts your favorite rifle caliber

Actually, the 270 shoots flatter because it fires lighter bullets.

150 grain bullets for the two cartridges function in entirely different ways, the .277 caliber one being intended for slow, controlled expansion and thus, deeper penetration, while the .308 caliber one is intended for violent expansion and less penetration.

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Wuts your favorite rifle caliber

I so sorry:
I was always of the opinion that two 150 grain bullets weighed the same

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Location: Idaho
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Wuts your favorite rifle caliber

I'd have to say my .223 rem. is my favorite rifle to shoot. It has no very litle recoil and plenty of range with the right handload. I only hunt big game in the fall and much of the time I use my bow. The rest of the year I am hunting coyotes, rockchucks, jack rabbits and ground squirrels.When I do need a large caliber of course it is the 30.06.
Hank

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Location: Missouri/Arkansas
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Wuts your favorite rifle caliber

''I so sorry:
I was always of the opinion that two 150 grain bullets weighed the same''

No, I am sorry. Not because I disputed your point, but rather because now I feel obligated to do something which, give the choice, I'd rather not do, and that is explain the situation to you in layman's terms. It does not matter that the two bullets weigh the same. It is not a matter of OPINION that the two bullets WEIGH the same. It is a matter of FACT that they FUNCTION differently. For someone that claims to have experience reloading, I am suprised that you overlooked this.

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Location: Idaho
Joined: 02/28/2006
Posts: 162
Wuts your favorite rifle caliber

"150 grain bullets for the two cartridges function in entirely different ways, the .277 caliber one being intended for slow, controlled expansion and thus, deeper penetration, while the .308 caliber one is intended for violent expansion and less penetration."

Sorry Captain but I have to dispute your theory. Each caliber is only is good as the projectile used. The .308 caliber will penetrate just as well if not better given the right projectile. The .270 will do well also. Rifle calibers only function to send a projectile somewhere. The design of the bullet determines the amount of fragmentation. Also the .270 does not shoot that much flatter than the 30-06 with the same weight of bullet. Its a matter of and inch or two within practical hunting ranges.
Hank

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Location: Duluth, MN 55803-9701
Joined: 03/11/2006
Posts: 3
Which caliber !!!

I do not think we will ever get one straight answere to that one ,

My favorites started with a new 1963 Winchester 70 30-06, to this day I kick myself when I think about it. First of all it is still hard to beat the old 06, second
perhaps what it might be worth today, but alas I got married in late 67 and sold it. Went a long time that I did not have much for Firearms. Now the last 3 years
I have made up for it. Now have 11 long guns and 3 hand guns. The last big bore I bought was going to be a Browning A Bolt 7MM WSM with a thub Hole Stock. Then well in love with with the new Savage w/ Accu Trigger in 7MM WSM.
Why the 7MMwsm who knows just wanted one at the time.
But now my son and myself are looking at a Alaska trip either this fall or next.
He has inlaws in Fairbanks and Anchorage. We favor Fairbanks as these folks
hunt both for pleasure and to fill freezer for the year. Have to see how my health is doing and they tell me money helps to.
Sorry for grtting long winded I am damn good at this. But one other note if you hunt woods maybe heavy woods a good old 30-30,35, Savage 99- 300 ect. it is quite hard to go wrong these calibers or maybe 45/70 I never shot one but friends who have sure liked them.
ENOUGHT!

SilverHawkII
davewakefield@juno.com

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Location: Missouri/Arkansas
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Wuts your favorite rifle caliber

''Sorry Captain but I have to dispute your theory. Each caliber is only is good as the projectile used. The .308 caliber will penetrate just as well if not better given the right projectile. The .270 will do well also. Rifle calibers only function to send a projectile somewhere. The design of the bullet determines the amount of fragmentation. Also the .270 does not shoot that much flatter than the 30-06 with the same weight of bullet. Its a matter of and inch or two within practical hunting ranges.''

Sorry, but the physical nature of the bullets precludes this statement from being valid. The 150 grain .277 bullet has a sectional density of .279, which makes it comparable to the 180 grain .308, with a sectional density of .271.

By comparison, the 150 grain .308 bullet has a sectional density of .226, regardless of the fact that it's still 150 grains. Sectional density, by the way, refers to a bullet's ability to penetrate. The higher the sectional density, the greater the penetration, regardless of whether two bullets for different calibers weigh the same.

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Location: Idaho
Joined: 02/28/2006
Posts: 162
Wuts your favorite rifle caliber

Yes you are correct about the sectional density being a factor but that does not address my original point. Given the CORRECT PROJECTILE, either caliber will do all the damage necessary and leave a nice exit wound in just about any big game animal in N. America. At this point penetration would end in good ole mother earth so what's the difference. I just don't know how you can say the .308 diameter bullet is designed to fragment where the .270 is not. Doen't make any sense.
Hank

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Location: Missouri/Arkansas
Joined: 08/21/2003
Posts: 891
Wuts your favorite rifle caliber

Nowhere in either post did I say either round was inept in any way. The performance potential of either round is not the issue at hand.

''I just don't know how you can say the .308 diameter bullet is designed to fragment where the .270 is not. Doen't make any sense.
Hank''

Let me see if maybe this makes it any easier to understand:

150 grain .277 bullet- SD is .279, comparable to the 180 grain .308 caliber bullet, which has sectional density of .271. Designed for controlled expansion and better penetration on animals like elk or moose.

150 grain .308 bullet- SD is .226, comparable to a 115 grain .277 caliber bullet. Designed for rapid expansion on light, thin-skinned game such as deer and antelope. For this reason, large animals such as elk and moose are not hunted with 150 grain .308 caliber projectiles.

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Location: Utah
Joined: 03/02/2005
Posts: 383
Wuts your favorite rifle caliber

So, in short and in summary:

Longer more aerodynamic bullets penetrate more than their shorter counterparts, so a .277 cal bullet weighing 150-gr's is about the same length and penetrates about the same as a .308 diameter projectile weighing 180-gr's.

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