I don't consider faster necessarily better, but when I decided on the .375 Ultra I had considered the .378 but was intimidated by the price of the brass. After shooting my .416 Rigby, and I had no wish to pay that much for brass again.
I wanted a cartridge that would match .375 H&H ballistics from a 20" barrel. The H&H has proven itself around the globe as the ultimate all around cartridge. I load 300's to 2600 and 270's to 2800, although the Interlocks are only for practice or for down loading for small game. The 260 gr Nosler BT's I down loaded to 2600 to maximize bullet performance, and the equally sleek but tougher AB's I decided to load to the same velocity as it shoots flat enough for my purposes. The .378 would shine with 380 gr bullets, and would undoubtedly make the magic 2400 fps. The Ultra pushes them at 2300, and for the cost of the brass I don't feel hard done by.
375 Epstein is a 375 H&H improved, much like the Ackley or 375 JRS or the 375 Wby. I have had a 375 Ackley, and still have a 375 Wby. Based on the data available at the time (in the 70s), I loaded the Wby to 2900 fps with the 300 gr Sierra. Never had any pressure indications. This was also what Epstein was claiming for his improved 375 at that time. Later, when more data became available, I backed that load down to 2800 with Nosler 300 gr bullets. If the Ruger is running alongside the 375 Wby that makes it a very useful cartridge indeed. - dan
Well, the case is simply less tapered, not actually any fatter, although that increases the useful capacity, so I guess the end result is the same. It still ends up being slightly smaller in case capacity then the 375 JRS/Ackley/Weatherby trio. So to make the velocities he does, he's either got a very fast barrel, quite a bit of freebore, or is running pretty high pressures. Or some combination of the three, which would be my guess. FWIW - dan
. I just say faster is better.
.I don't ever intend to hunt dangerous game on purpose with my 378. Its a long range Moose and Elk gun
I have a CRF .416 for anything dangerous. The WBY is definatly not for everyone. The recoil is extreme. If you don't shoot big guns regularly it would be useless.
say what you want, but bigger is always better. This is something all men know intuitively. You need dozens of words, sentences, tech speak, and explaining to make the case for the Ruger. For the 378, it's simple: "mine's bigger." nuff said.nyah nyah!




























