375 Whelen Improved?

It would be a 375 Whelen Improved, but marking and papers would say "38 Whelen"

Why? Just because. If one do not, we all would hunt with a 30-06...


And-having a 38Whelen do not mean I can`t have a 35 Whelen :cool:
My project/fun-gun is a Rem700Long Action with a switch barrel system
 
It would be a 375 Whelen Improved, but marking and papers would say "38 Whelen"

Why? Just because. If one do not, we all would hunt with a 30-06...


And-having a 38Whelen do not mean I can`t have a 35 Whelen :cool:
My project/fun-gun is a Rem700Long Action with a switch barrel system
@GuttormG
Plus all you have to do is overstamp the 5 with an 8 on a Whelen case and you have properly headstamped brass
Ha Ha ha
Bob
 
No point in a .375 Whelen... might as well to a .375 WSM...

20240925_192921.jpg
 

Everyone ask me the same question when I try to tell them how much fun a wildcat or oddball cartridge can be.

I have a riot shooting my .357 Herrett and have thought about going to a 350 Remington, but then I ask myself, Why????
 
Everyone ask me the same question when I try to tell them how much fun a wildcat or oddball cartridge can be.

I have a riot shooting my .357 Herrett and have thought about going to a 350 Remington, but then I ask myself, Why????
Jim, I think you should get a .350 Remington. I have new RCBS dies for that cartridge but no rifle yet. The "why" has no translation or meaning on this forum. LOL
 

You're all for necking up a .30/06 case to .375 and then adding the extra step of improving it, but necking up the WSM case to .375 and going shooting seems crazy?

As it turns out the .375 WSM is quite a pleasant and potent cartridge... I've been able to test it on moose and bears and will see how it does on PG in the near future.
 
Everyone ask me the same question when I try to tell them how much fun a wildcat or oddball cartridge can be.

I have a riot shooting my .357 Herrett and have thought about going to a 350 Remington, but then I ask myself, Why????

Here is the answer...

If push came to shove, and I was forced to give only ONE answer to the question, "what is the perfect cartridge and load for bears?" The answer would be, the .350 Rem Mag loaded with 250 grain Partitions.

20241218_063413.jpg
 
Or just buy a .375 Ruger?

I did that... have you tried to find .375 Ruger brass? What a PITA. I have an unlimited supply of .300 WSM brass on hand. It just occurred to me one day that the WSM case is just about perfect to drive the lighter .375 bullets at good speed, in a light (ish) hunting rifle. The 235 Speer and 235 TSX kick azz out of this rifle... so much so that I am "carbine-ing" my .350 Rem Mag.
 
You're all for necking up a .30/06 case to .375 and then adding the extra step of improving it, but necking up the WSM case to .375 and going shooting seems crazy?

As it turns out the .375 WSM is quite a pleasant and potent cartridge... I've been able to test it on moose and bears and will see how it does on PG in the near future.
What kind of ballistics are you getting with a 300 grain pill?
 
I just had one built, I’ve been doing a little load development but haven’t done much. I do have a load with Sierra 250 gr shooting 3/4 inch groups but haven’t cronagraphed it yet. My one club has been shut down since May.
 
I did that... have you tried to find .375 Ruger brass? What a PITA. I have an unlimited supply of .300 WSM brass on hand. It just occurred to me one day that the WSM case is just about perfect to drive the lighter .375 bullets at good speed, in a light (ish) hunting rifle. The 235 Speer and 235 TSX kick azz out of this rifle... so much so that I am "carbine-ing" my .350 Rem Mag.
"have you tried to find .375 Ruger brass?" Yes, and you're right, you can't because Hornady hasn't made any reloading brass for it in over three years. I have SOME once fired and a couple of boxes of factory. Good choice going with the .300WSM brass since you have a lot of it. I have a quite a bit of once fired .338WM brass, so my option would be a .375/.338 (.375 Taylor?) if I wanted to go down that Tasmanian Devil hole. LOL
 
A couple summers back I walked into my favorite little neighborhood gun shop, and found much to my dismay they were closing after four decades in the business. Everything was on clearance, it all had to go. I had been going in this place at least three of those decades with my family, and knew the owners well.
I walked out with a custom rifle nobody wanted due to the caliber, .375 Whelen Ackley Improved. It was just too nice to walk away from, and way too, shall we say "affordable". It was very well put together, the name on the barrel was M. Palazzo. The action turned out to be a 1936 Mauser, mfg. by Mauser. The fit, finish and attention to detail was very good. It is glass bedded and free floated in a Pacific Research synthetic stock. No idea what trigger is in it, but it breaks crisply at 2 3/4 lbs. Barrel origin unknown, 23 inch with a svelte small muzzle brake that almost goes unnoticed. The line between the brake and barrel you can't quite see unless you really look for it, and I hate muzzle brakes, but I can live with this one, it is reasonably tame as brakes go. Barrel is a medium contour, balances perfectly. The bolt operates in that Mauser "snickety, snict" way, slick, smoothe with purpose. Buehler style scope friendly safety works perfectly. Leupold/Redfield rings and base on top.

Being a life long handloader I ordered up dies, I had lots of brass [.30-06] and bullets [.375] on hand already. I was already an admiring owner of multiple .35 Whelen's, so case prep and fireforming was easy. I found that starting with 9.3x62 load data with similar weight bullets was a good place to start. Reloader 15 worked great in my .35's, so I started with it. To sum it up, it turned out to be an absolute winner. It shoots and handles great, haven't harvested anything with it yet, but I will. Thus far I have only worked up one load. 270 grain Speers, as you can see shoot well, and chrono right at 2,500 FPS. Next I will experiment with 250 grain Sierra's and Barne's TSX's when I have time. I am sold, honestly it I really like this rifle and have had a good time experimenting with it.

Now, under normal circumstances would I have chosen, or sought this particular caliber out?; Probably not, already having multiple .35 Whelens, a custom 9.3x64 Brenneke, and multiple .375 H&H's on hand, but for happenstance I am glad I did, it's really been fun. Why was it built? Well, judging by the components, and talking with people that knew Mr. Palazzo, the rifle was probably built in the late 80's through the 1990's. Something like a 9.3x62 was not all that prevalent here in the states back then. Or perhaps that is what the original owner just wanted, who knows. I certainly can't rationally explain every purchase I have made, but I am glad I made this one.
20230626_170918.jpg
 
Is anyone familiar with the .375 Whelen Improved? I came across one and was wondering if it is worth bidding on.

As I understand it, the .375 Whelen is based upon the the .30-06 cartridge necked up to .375.

I must admit I have a thing for obscure calibers.
My .375 Whelen (not AI) as well as my son's launched 300 gr A Frames @ 2450 over a Garmin chromo this past weekend
 
@DocHolliday What powder do you use? That performance is right in there with 375 flanged and some factory loaded 375 H&H. That is quite impressive for a 30-06 case, and I am guessing since it is 375 caliber, it meets the minimum requirements for DG in most countries and you only need 2451fps to get over 4000fpe. I swage my own bullets in most big bore and medium bore calibers, so I am going to experiment making 375 partition bullets with bonded core and multiple grooves on the bearing surface of the bullet to reduce barrel friction and safely increase velocity to just over 2450 consistently.

Great job on the reloads.
 
It sure seems like a headache of a project when there are so many equivalent or better solutions.
 

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