melanie wrote:Boat tails are supposed to be the best, right? So why would you pick either of the other two when everything else is the same?
Jack V wrote:A 180 grain 308 will pretty much nail anything in Australia.
sbd3927 wrote:Round noses are more intended for tubular magazines, Noone wants a sharp projectile sitting on the primer of the next cartridge.
I question that round noses are better at penetrating bone. I think they expand sooner, which doesn't equal penetration.
I shot a 5yo bull with a 30/30 a few months ago, which failed to drop the animal. Looking at the skull recently, shot placement was perfect, but the projectile disintegrate at the back of the nose, about 2 inches in, never reached the brain cavity. Part of my motivation for getting the .308
sbd3927 wrote:Round noses are more intended for tubular magazines, Noone wants a sharp projectile sitting on the primer of the next cartridge.
I question that round noses are better at penetrating bone. I think they expand sooner, which doesn't equal penetration.
I shot a 5yo bull with a 30/30 a few months ago, which failed to drop the animal. Looking at the skull recently, shot placement was perfect, but the projectile disintegrate at the back of the nose, about 2 inches in, never reached the brain cavity. Part of my motivation for getting the .308
sbd3927 wrote:I question that round noses are better at penetrating bone. I think they expand sooner, which doesn't equal penetration.
BBJ wrote:I'll leave one of the benchrest boys to cover the flat base spitzers, not something I've had much hands on with but that's where they live normally AFAIK.
Vati wrote:The greater bearing surface on the rifling lends itself to stability and accuracy.
300m is where the flat base really thrive from memory. Further than that the advantage starts swinging back to boat tails.
Jack V wrote:Bearing surface alone is not the whole issue it's way more complicated than that.
The Brass wrote:Look up the Nosler Solid bullet.
headspace wrote:Melanie if I'm right you're loading for a 308.
headspace wrote:Melanie if I'm right you're loading for a 308. I'm using 165gn Interlock boattails in mine and it shoots extremely well.
Ballistically the 165 is a better hunting bullet because you can get more velocity out of it, it maintains velocity better and has better terminal velocity, particularly over a longer range.
For hunting the 180 is probably a good bet at closer range, like in thick scrub, but it loses velocity very quickly once it get past 200m.
Most long range comp shooters favour the 175gn bullet over the 180.
For hunting at sensible ranges I find it hard to pass up the 165. I chronographed my loads and they are going at an average of 2,740fps.
JD
Jack V wrote:+1 on what headspace says. 180 grain is a bit too heavy for the smaller 308 case for general hunting. In a 30-06 or 300 Win Mag it would be different.