Very Interesting . . .

[longwinters]

When someone asks what weight bullet to shoot ( for say elk etc . . .) out of a 270 people will typically say that a good 150 gn bullet will do it no problemo.

But, when someone asks the exact same question but in regards to the 30-06 they are told that they have to go with at least the 165 or 180 to get the job done :?

Hmmmm.........

Long

 

[Ol` Joe]

The 270 150 gr has a SD of .278 according to Speer. (nearest referance)The 180 gr 30 cal is still a little light on SD with .271 as Speers figure. The penitration of the bullet is based on the sectional density of the bullet with equal velocities, and the 150 gr, 270 cal has an edge over bullets lighter then 180 in the 30 calibers. Bullet construction helps make up for lower sectional density to a point but one is still better off IMO with the longer bullet.

 

[FOTIS]

Like Joe said
.277" 150 gr equals (+/-) the 180 gr .308"

 

[Guy Miner]

Typically .30 cal 150's are intended as deer bullets. Rapid expansion on these 150 - 250 pound critters. Okay, some are 100, some are 300 but most of the deer my buddies and I have shot over the years fall comfortably into the 150 - 250 pound range, with darned few at that 250 level...

Elk now... A big bull elk goes 700 pounds easy. Big bones, heavy muscle. Often covered in mud during the rut... A fellow might slip one into the boiler room real easy, and make do with a deer bullet. Or he might have to punch through several feet of heavy elk to get the bullet into the vitals... That's where the heavier, longer bullets shine - when deep penetration is required. Also a darned good time for a "premium" bullet like a Nosler Partition.

FWIW, Guy

 

[JD338]

Well put Guy!

Long, a 150 gr BT would make for an excellent all around deer bullet either in the cedar swamps or the open pararie. Just switch to the 150 gr PT (no AB yet) and you are good for deer up to Elk or Moose.

JD338