So I am nterested in having a 375.
I really want something with will be primarily used suppressed and Subsonic for Deer Hunting but that I can also shoot supersonic at reasonable velocity at the range. I have been thinking maybe a 375WSM built short and light as possible but I have a chance to purchase a 375RUM and this would be a simple barrel chop / stock change to lighten it up.
All my other rifles run removable brakes and have suppressors and a wildcats so making ammo is not the issue. A 300gn bullet at 1065fps would do for deer and i am sure would be very quite when suppressed.
Thoughts apart from the obvious "i'm bonkers" one

Similar to the one featured here
Ultralight WSM but suppressed as well

Check out the 375 SOCOM, also. I believe there's a thread on here from a few months back about it.

Mike,

That's a big case to try to reduce the velocity that much in. Do you have a source for reduced velocity load data already?

A couple of mates of mine there have full sized 375 H&H magnums that they used for deer and pigs but they're the odd balls.

I've shot suppressed smaller bore rifles (222, 270 etc.) hunting there but never the big bores.

For your described use stay away from the 375 RUM as you'll be blowing unburnt powder down the barrel with every shot.

In a short action rifle (as noted in your link) the bullet usage and overall performance is dictated by the magazine length of the action. The WSM case would be the longest case to use, the SAUM case length may give slightly better efficiency and bullet choices.

Pick the case that most readily available in your area/country and enjoy your endeavors.

quote:

Originally posted by capoward:
For your described use stay away from the 375 RUM as you'll be blowing unburnt powder down the barrel with every shot.

In a short action rifle (as noted in your link) the bullet usage and overall performance is dictated by the magazine length of the action. The WSM case would be the longest case to use, the SAUM case length may give slightly better efficiency and bullet choices.

Pick the case that most readily available in your area/country and enjoy your endeavors.

I agree. The RUM needs at least 25 inches and it is muzzleblast city at that. Powder capacity will do you no good if you don't have enough barrel to burn it.

quote:

Originally posted by Mikee-NZ:
primarily used suppressed and Subsonic for Deer Hunting but that I can also shoot supersonic at reasonable velocity at the range.

375 hh or 375 ruger with trailboss --

I would agree that if you want a 375 for suppressed and Un-suppressed hunting with a short barrel that a 375 socom
Might be your best bet. You could certainly run a 375 RUM subsonic, but in a short barrel supersonic you'll not get decent velocity. You'll get a nice fireball though! Too much trade off with the big case.

Mikee As already mentioned the 375 RUM is not the answer. For what you want consider the 375-06 Ackley improved. Plentiful 30-06 cases, extra round in the magazine compared to a WSM or a belted case yet decent velocity with 235, 250 and 260 gr bullets for hunting. With the Imp case you still have positive headspacing and fire-forming cases is easy.

It's an excellent idea. I think snowman has a good suggestion.

May I add:
First select your action. Long or short and bolt face 308/30-06 or belted mag, ruger mag, WSM, etc. ( that will save you some gunsmith costs.)
Then select the case. Short action calls for 308, 284, 350 Rem Mag, 450 marlin type of case. Etc.

I recently converted a 308 Brno to a 358 Winchester. What a nice little rifle with plenty of power. It just required a different barrel, nothing else. (required on custom dies or reamers.)

It will be a good project but go for a short case with a short barrel, like guys here have suggested. Read B&M Cartridges and rifle. They have done much with short crtridges based on WSM and short barrels. Brian

I shoot a 16" 375 WSM. 225s at around 2800 fps with no pressure signs!

quote:

Originally posted by Tyler Kemp:
I shoot a 16" 375 WSM. 225s at around 2800 fps with no pressure signs!

Yep I've decided to build a 375WSM, 16 inch barreled as well. Just need to figure out the best twist for heavy leiHigh bullets as most of the time I intend to hunt using subsonic load. (Suppressors are not restricted here in NZ in any way so we are lucky in that regard. )
BUT I want to be able to use both.
Would you care to share any of your load data??

Tyler, Congratulations on starting MK Machining.
I will check out your website.

Best of luck for the future. Brian

The .375 SOCOM with a case full of Trail Boss is really, really quiet. I can't think of a better subsonic .375 than the SOCOM.

Lane and Bowers both make .375 suppressors specifically for it.

Another option would be the .375 Automag firing the super long 350 grain Sierra Match King. Unfortunately, you can't get it anywhere near 1050fps with Trail Boss and would have to use 1680.....and that makes it a whole bunch louder than the SOCOM running Trail Boss.

Tony Rumore
Tromix

quote:

Originally posted by Brian Canada:
Tyler, Congratulations on starting MK Machining.
I will check out your website.

Best of luck for the future. Brian

thanks Brian. We are working on some cool stuff! And we ship to Canada cheaper than anyone else

Well i am underway on the project
Dies from C4CHD hve arrived, New 300RUM purchased as donor rifle. Barrel ordered along with brake and suppressor.
Will be throated to fit 350SMK seated level with base of the neck. Planning on shooting heavy cast gas checked bullets sub sonic and lighter 235 barnes or similar supersonic when necessary. Deer better look out.

Probably work just fine, I suggest you tape your eyebrows and eyelashes on however. It takes forever for them to grow back..

quote:

Originally posted by Atkinson:
Probably work just fine, I suggest you tape your eyebrows and eyelashes on however. It takes forever for them to grow back..

Shuld have said went for 375WSM in the end. My eyebrows and eyelashes should be fine
Will be suppressed after all.

quote:

Originally posted by Mikee-NZ:

quote:

Originally posted by Atkinson:
Probably work just fine, I suggest you tape your eyebrows and eyelashes on however. It takes forever for them to grow back..

Shuld have said went for 375WSM in the end. My eyebrows and eyelashes should be fine
Will be suppressed after all.

I have .375 WSM great round.

I used Pierre Van Tonders Win. mod. 70 375 H&H original factory gun with the original 20 inch barrel to shoot a number of animals in Tanzania. Loved it, tried to buy it, tried to steal it, didn't work so I built myself a 375 Ruger on a Mauser 98 with a 20 inch barrel..it was nice also and I didn't loose but about a 100 FPS, and besides I always loaded my long tube 375 at 2500 FPS with a 300 gr. bullet, as I got better penetration and better bullet performance by slowing that bullet down, so it all worked out fine for me..

In the life of a true rifle man, he will, during his life span, bounce from long tubes to short tubes and back many times. all of which means nothing other than one must!

I'm in the short barrel phase . I wish I get 4k ft lbs from a 400 + caliber bullet of 300 grains or more, from a 16" barrel while burning less than 70 gr of medium fast rifle powder.

quote:

Originally posted by PC:

quote:

Originally posted by Mikee-NZ:

quote:

Originally posted by Atkinson:
Probably work just fine, I suggest you tape your eyebrows and eyelashes on however. It takes forever for them to grow back..

Shuld have said went for 375WSM in the end. My eyebrows and eyelashes should be fine
Will be suppressed after all.

I have .375 WSM great round.

Really ........ tell me more.

Everything is now at the gunsmith waiting on him to do his bit. Have 100 cases necked up and ready to load. Currently considering a NOE HP bullet mould to cast big HP bullet for Subsonic use

Many years back I owned a Win Mod 70 in .375 and it came with a 20" tube.
That particular rifle was one of the handiest, best balanced outfits it has ever been my pleasure to own.
More important than the actual length, I believe, is the profile of the barrel in order to achieve the proper balance.
Years later I re-barreled (20") and re-chambered that rifle to Lott for a trip to Africa, and in its new guise that particular rifle was very comfortable as well as practical.

Today, I have a .500 MDM Ultra a 9.3x64mm as well as a 9.3x62mm, all sporting 20" tubes.

So as Ray has suggested, I too must be going through my "short-tube" phase.
It's a damn good phase !!!!!!

I fail to see the reason why someone would build a racecar designed to hit 300 miles per hour in the 1/4 mile, then only run the car on 1/8th mile dragstrips.

quote:

Originally posted by Ray B:
I fail to see the reason why someone would build a racecar designed to hit 300 miles per hour in the 1/4 mile, then only run the car on 1/8th mile dragstrips.

Because you can has always been good enough for me

quote:

Originally posted by Mikee-NZ:

quote:

Originally posted by PC:

quote:

Originally posted by Mikee-NZ:

quote:

Originally posted by Atkinson:
Probably work just fine, I suggest you tape your eyebrows and eyelashes on however. It takes forever for them to grow back..

Shuld have said went for 375WSM in the end. My eyebrows and eyelashes should be fine
Will be suppressed after all.

I have .375 WSM great round.

Really ........ tell me more.

Everything is now at the gunsmith waiting on him to do his bit. Have 100 cases necked up and ready to load. Currently considering a NOE HP bullet mould to cast big HP bullet for Subsonic use

Sorry about slow reply I have not been here for a while. It's based off a surgeon WSM action in a McMillan stock with Kreiger barrel. I shoot 225 gr hornady spire points at 2840 fos the barrel is 19" long. I actully have it advertised for sale but may keep it if I don't get my price.

Cheers pc3

So I have the rifle completed and trst fired it today. 16 inch barrel and it is LOUD but I knew that. 200gn Sierra PH at 3050fps using ADI BM2
Now i just need to get my bullet mold ordered and also planning to have a whirl with 260gn Accubonds.

Not too bad to shoot even bare with neither the suppressor or brake
Overkill for deer hunting but thats OK

Looks like a very handy, compact rifle. I like the way the suppressor fits back over the barrel and adds minimal length. What model? How effective is it??

Suppressor is a locally mande one ( DPT ) I have 3 of them. This one is originally for 350Rem Mag but opened up a little for the biggr calibre. Total barrel length with suppressor fitted is 20 inch's
You can comfortably shoot the gun with suppressor but without muffs in hunting situations

We do not have any rules/regulations regarding suppressor use here in NZ and they can be purchased "off the shelf" and used where ever and whenever and however. It is very common to see them on hunting rifles