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Discussion Starter · #1 ·
Considering getting a l/hed rifle built in either 375H&H Improved or standard 375H&H.
Is the improved version worth the extra cost of the dies?
Thanks.
 

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375H&H Improved vs standard 375H&H-

Worth it for what? What do you plan to shoot with it? I would think that either would be more than adequate for anything on this continent.
 

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Discussion Starter · #3 ·
375H&H improved vs 375H&H standard

I'm referring to sharper shoulder on the improved version.
Is that so much of an advantage to offset the more expensive dies?
 

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375H&H Improved vs standard 375H&H-

Not really. It's tough to beat the standard version, but if you want a wildcat I'd look at the .375 Epstein Express. It's a shortened, improved version version that actually shoots faster than the standard one with less powder and usually is very accurate. But to do a .375 H&H AI? If I wanted one of those I'd look into a .375 Weatherby. Basically the same thing and dies aren't nearly as pricy. And it can be loaded to give a significant improvement over standard H&H factory ammo.
 

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Have you looked at the 375 RUM?

Quite a bit cheaper than a Weatherby, and I bet it has more oomph than the Ackley. I could be wrong, but why bother with a wildcat when you can get something with factory ammo that will do the job? Plus you can use regular dies.......and, if you ever decide to sell it, a factory chambered rifle moves faster.
 

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Discussion Starter · #6 ·
375H&H improved vs 375H&H standard?

From what I've read,one can fire standard 375H&H in the improved version [albeit with some velocity loss],supposedly the improved stretches less due to the sharper shoulder.Haven't loaded enough 375H&H so far to be able to tell[existing rifle up for sale]. Dies[at least for Redding :appear to be $45 for standard,$90 for improved]
In a lopsided analog:the virtue of the 458Lott-you can use both 458Lott and 458Win in same rifle.
Appreciate the feedback.
 

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375H&H Improved vs standard 375H&H-

Consider the .375 JRS. Created by its name sake, gun writer John R. Sundra, it is the 8mm Rem Magnum necked up to .375. The 8mm Rem Magnum is the standard belted magnum case of .375 H&H length. It has a straighter case, sharper shoulder and greater capacity for another 200 fps. or so. This means 2900 fps with the 270 grain bullet and about 2700 with the 300 grain bullet. Ballistically, it's about the same as the .375 Wby.

Of course you can still shoot regular .375 H&H rounds in the .375 JRS and the .375 Weatherby chamber if, for whatever reason, the need to do so arises. Bill Jordan once referenced another .375 Wildcat named after custom gun making out fit in Oklahoma which would chamber the .375 H&H and the .375 Wby if needed.

One problem with the .375 H&H is not that it's insufficiently powerful, but that it's a relatively tapered shell casing and that it's a little short on capacity especially for the heavier bullets. This sometimes results in powder being compressed in the heavier loads and erractic ignition. Bob Hagel wrote about this in the Wolfe Book, Big Bore Rifles. You would not have this problem in the .375 JRS or any of the other "improved" versions of this round. If I an improved round of whatever configuration, I would consider loading it to conventional .375 H&H ballistics with the effect of more uniform ignition and lower pressures.

The .375-.338 (.338 Win Mag necked up to .375 also called the ".375 Taylor") is also very tempting, although you can't use any factory loads in it. If you have a long action so that you can long throat the bullets, the straight .338 case has almost the same capacity as the longer, but more tapered .375 H&H casing and will easily duplicate its factory ballistics. Why not just use the standard .375 H&H if you have a long action? Well the shorter casing is more widely available and is a more efficient shape.
 

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375H&H Improved vs standard 375H&H-

My memorybanks just clicked in. Bill Jordan's .375 wildcat, that could also chamber .375 H&H and .375 Wby in a pinch, was the .375 Mashburn. I don't see the Mashburn listed on any of the die lists, however, and maybe it's moribound.
 
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