The reason I asked about the jacket thickness (JT) of the Barnes 300grn original is because I've seen conflicting accounts as to the JT of the 300grn Barnes Original RN in in .
358" diameter in handloading articles where it's even mentioned. One source listed JT as
0.49 and added that accuracy was excellent. Another listed JT as
0.32. Obviously the thicker the jacket the better the bullet will hold up at near-max velocities when penetrating thick African hide and then into sinew and bone, as you describe.
Length of the .358"/300grn Barnes RN projectile was said to be 1.354". For guy with a 35 Whelen or a .358 Norma Mag, that doesn't create a COAL a problem, but for my application that's a
long bullet.
I'm working with what is effectively a "short magnum" case in a short action (2.800") gun - the .350 Remington Magnum.
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My goal was to develop a "heavy load" for my
20" M660 rifle using a 300grn bullet, close to what noted ballistics expert Ken Waters described in his
Pet Loads tome in the chapter on this cartridge. Using powders like H4895 and IMR 4320, Waters reports getting velocities of 2250fps and 2191 respectively with the 300grn Barnes.
Two key variables are that Waters' rifle was a
22" Ruger M77, and the fact that its long action allowed him to slightly long-load the 300grn slugs past 2.800" OAL. In my research, however, other writers - like Layne Simpson and Al Miller - similarly describe a "heavy" load using the 300grn Barnes Original in their Remington model 600 carbines, which uses the same short-action as my 660.
Anyway, failing any more 300grn Barnes Originals being out there, I decided to experiment with the .358"/300grn round-tip (RT) bullets from Hawk Bullets. On my caliper, length runs between 1.290"-1.294", so shorter than the Barnes. Last summer, after going through a couple of boxes of their
0.35 JT bullets, I settled on a load that was reasonably accurate at 100-yds. But I've since been wondering whether Hawk's 0.50 JT bullet might improve on that.
For .358" shooters generally, Hawk offers a wide range of bullet-weights from 200-300grns (RTs and Spitzers) as well as JT options to suit your hunt. No connection to the company, I'm just passing along this information.
From Hawk Bullets webpage, starting with the 250grn weight RT bullets:
| 250 grains x .035 RT |
| 250 grains x .050 RT |
| 275 grains x .035 RT |
| 275 grains x .050 RT |
| 300 grains x .030 RT |
| 300 grains x .035 RT |
| 300 grains x .050 RT |
The World's Largest Selection of Bullets. .351 SL 33 WCF 348 Winchester 50 Beowulf 38-55 9.3mm 8mm 32 Remmington 270 Caliber Cal 280 Ross 50-110 38-40
hawkbullets.com
Currently I'm waiting on an order of the 300grn/
0.50 RTs to run through the M660. So we'll see ....
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