Hallo IvW,
Your posts often make more "basic horse sense" to me than some other's do (admittedly to include some of my own blathering as well).
Be that as it may, and just to be a smartass here, if Rhino or Swift (or name your premium bullet) made their excellent bonded core softs in .509" - .510" caliber, at 570 grains of both spitzer and round nose shapes, would you prefer one over the other in your .500 Jeffery and why ?
Actually my question is only partly flippant in content, because I too own a .500 Jeffery and am honestly curious what someone who has shot a good number of animals with this caliber would prefer, round nose or spitzer (or, semi-spitzer while we're at it).
I've not shot very many live animals with any caliber above .375 except one buffalo (.450 No2 NE) and Sitka blacktail deer (.45-70).
But I have indeed shot perhaps 40 hooved, non-dangerous animals with the .375 H&H, using both pointed and blunt shaped softs alike on these.
It's admittedly not very many critters, in the big picture of things but even so, I have noticed that heart / lung shot animals apparently succumb faster, from blunt shaped .37 caliber projectile hits than their similar sized brethren do from pointy shaped .37 caliber heart / lung hits.
Respectfully,
Velo Dog.
Hi Velo Dog
Let me stick with the Rhino bullets as this is what I use exclusively for DG and short range(up to 220 yards) PG hunting.
You are most certainly correct in your assumption that heart/lung shot animals succumb faster when shot with blunter projectiles than with more spitzer shaped ones. The main reason for this is that this shape and design ensures proper set-up or mushrooming of the bullet upon impact with whatever it is you are shooting.
Now if you are using a round nose shaped bullet, with a decent portion of lead exposed at the nose, the lead is bonded to the copper jacket, the bullet has a solid rear shank to control expansion and it is designed to open up with four petals that typically expand to 2.5 x the caliber, then you have one of the best bullets available for DG.
Best of all it is of forward weight design and remains as such even after full expansion.
This design maximizes killing efficiency due to its excellent straight line penetration and devastating wound channel.
Barnes bullets, although excellent bullets for PG fall short for DG. This is due to the spitzer design and in order for the bullet to expand, it is designed with a small hole in front. This design makes use of hydraulic action to expand(soft tissue entering the small hole hydraulically forces the bullet to start set-up. Unfortunately, especially when initially hitting hard bone etc. they do not always reliably expand. Therefore I do not use them on DG. This may also occur with the bullets in the magazine of heavier recoiling rifles. The delicate front part of the spitzer shaped bullet impacts heavily with the front part of the magazine which may cause enough damage to the tip to hamper expansion. I have seen too many bullets of this design not expand.
Back to the Rhino bullets.
The heavy for caliber, larger bore(375 and up) Rhino controlled expansion bullets are most definitely not what you could call a spitzer or even semi-spitzer, they are much more round nose shaped. The smaller calibers are more spitzer shaped.
Third from the right is where 375 H&H starts, nothing spitzer about them.
380 gr 375 bullet, more round nosed than spitzer.
They are moly coated to reduce bore fouling from the copper.
More 380 gr 375 bullets.
3 shot group at 100 meter 9,3×62 300 gr.RHINO
3 shot group at 100 meter 9,3×62 300 gr.RHINO
Problem Zebra stallion(killing all new foals in herd), I shot this zebra with my 7x57mm using a 170 gr Rhino. He was running right to left behind the herd at 70 meters. One shot and he piled up 50 meters later.
Eland bull shot for meat. I again used my 7x57mm loaded with the same 170gr Rhino bullet. Broadside on the shoulder shot, bullet smashed through shoulder top of heart and lungs, other shoulder and lodged under the skin on the opposite side. The bull was oblivious to my presence when I shot him and he managed only 15 meters before piling up.
From Kobus at Rhino bullets website;"Whether you are after a trophy Blue Duiker or Cape Buffalo you have a bullet that has done the job before and will do the job again and again. Rhino Bullets have been designed and constructed to stand up to anything you throw at them."
I can wholeheartedly attest to this fact.
So to answer your question in short-
at 570 grains of both spitzer and round nose shapes, would you prefer one over the other in your .500 Jeffery and why ?
Round nosed. Having said that other bullets with a more spitzer shape bullet(swift A-frame etc.) also work very well and this I attribute to the fact they they are weight forward designs and have enough lead exposed in front to ensure reliable expansion. A-frame, Trophy bonded bear claw, North Fork are excellent bullets.
For me the, Rhino in 570 grain controlled expansion or the Rhino meplat solid(for ele, rhino and hippo on land) in the 500 Jeff all the way. Just be well aware of the fact that the solid 570 gr Rhino will shoot through just about everything at the velocities I load them. Elephant, buffalo etc. I shot a White Rhino bull with a quartering frontal shot-bullet entered in front of the rhinos right shoulder and excited on the left rear leg!
Why? Because they work and are the most devastatingly effective bullet I have ever used, especially on DG, I have never had any issues or failures with them. It is a bullet I can use with the utmost confidence in any situation on any DG and know that it will do what it was designed to do. Kill with the most efficiency of any bullet I have ever used.
Good hunting to you, Sir.
Best regards.
IvW