.375-08?

In the case of the 375 Whelen, my understanding it should be an AI variant if you don't want to have head spacing hassles.
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- that's my understanding too and probably should do the same with the 375-308 cat if building one.
 
philthygeezer said:
Looks like Whelen did it with the .375-06: 300 grains at 2100 fps with that case.

http://en.wikipedia.org/wiki/.375_Whelen_%28.375-06%29

Bullet (grs.) Powder / (grs.) MV ME
200 SP IMR4064 / 58.0 2450 2265
235 SP IMR4064 / 60.0 2475 3205
270 SP IMR4064 / 57.0 2380 3400
300 SP IMR4064 / 52.0 2110 2975

The thought was a mild-recoiling standard or short action length medium bore that could be done with just a rebarrel from ordinary rifles. I wonder whether a 270 grain at 2000 fps or a 300 grain at 2100 piques anyone's interest.

The .375-06 or .375 Whelen could match the newer heavy .45-70 loads while having better ballistics perhaps.
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The 375 Whelen has not and I doubt will ever take off. With the 375 Ruger having the same action length and beating the Whelen by 600+ fps I doubt it'll ever be chambered. Since the Ruger can be downloaded, that point is moot as well.
Calibers like these are only used by guys who want something totally different for conversation's sake, they don't have a mainstream following and don't offer any advantages to anything currently available. There's nothing wrong with that of course.

The main attraction to the 375 caliber is for big game and big bullets with trajectories similar to smaller bores like the 30-06. This you'll find in the H&H,Ruger, and Wby. Those who want big bore brush guns will opt for the levers in 45/70, 444, 450 and to some extent the 356 and 375 Winchester, though neither of the latter two became popular either.
 
bearkilr said:
The 375 Whelen has not and I doubt will ever take off. With the 375 Ruger having the same action length and beating the Whelen by 600+ fps I doubt it'll ever be chambered. Since the Ruger can be downloaded, that point is moot as well.
Calibers like these are only used by guys who want something totally different for conversation's sake, they don't have a mainstream following and don't offer any advantages to anything currently available. There's nothing wrong with that of course.

The main attraction to the 375 caliber is for big game and big bullets with trajectories similar to smaller bores like the 30-06. This you'll find in the H&H,Ruger, and Wby. Those who want big bore brush guns will opt for the levers in 45/70, 444, 450 and to some extent the 356 and 375 Winchester, though neither of the latter two became popular either.
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Makes pretty good sense. After all, people have had more than 100 years to think all this stuff out.
 
For me whether an action was .308 or 30/06 length never really made much difference, but if short action is your thing, the 9.3 B-S might do the trick.
That is unless you don't care for belted cases.
I've never had a problem with them, but some guys just don't like them.:)
I'm sure there's a .375-.350 Rem Mag out there.
 
philthygeezer said:
MeltonJD.375-308.03.JPG


Cannelures lined up for comparison. (L to R) 300 FMJ, 270 TSX, 260 PAR, 260 AB, 235 TSX, 375-308, 9.5 MS, 375 Ruger, 375 H&H.
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What's a 260gr PAR?

.
 
Reloaders Nest shows a 235gr Woodleigh load for the .375-284 wildcat at 2343 fps. Wonder if you could get that 260gr Partition to 2200, and if that would be enough steam to get it to open up.

There's always the 9.3x57mm, there might be a few short actions just long enough to squeeze one in.
 
gunsmith1951 said:
I have .375JDJ in a contender and it produces about 1951fps with a 270 grain in a 16in bbl..444 Marlin case necked to .375.
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I load my 21" barreled 375JDJ Contender carbine to 2300fps with 260gr Accubonds it is still doing 1800fps @ 300 yards.

Accubonds are designed to expand to below 1800fps = 300 yard thumper and my favorite Contender cartridge.

CC
 
Noel said:
FWIW I looked in my old wildcats book and it listed the 375 Whelen as doing about 2185 with a top load.

Far as the shallow shoulder goes, if a guy is real careful when sizing there should be no trouble, the 9,3x57 has a smaller shoulder but it works fine and they also went up to 10,75 with that case! The 308 case has a much straighter body.

I wonder if anyone ever necked a 284 Win up that far.
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I read an article years ago about a 284 savage 99 that was rebarreled to a 375/284. The author only used 235 grain bullets though.
 
A 375-08 has a smaller case capacity than the 375JDJ its velocities with any bullet weight would be in between the 375 Win and the 375JDJ if chambered in rifles that handle = pressures.
 
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