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9.3x375 Ruger
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I ordered a 9.3 barrel this morning.Will have it chambered in 9.3x375 Ruger.The question is has anyone else done this?Any load or performance info out there?

Rich
 
Posts: 227 | Location: West Central Sask | Registered: 16 December 2000Reply With Quote
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Seeing there is only 0.009" difference in bore size you could use 375 Ruger load data, dropping 10% and working up. They should be pretty much equal in performance.

You're the first to do it as far as I've heard.

Lots of bragging rights...for a while at least.

Now watch the 9.3 rechambers start popping up. Big Grin

LUCK
 
Posts: 1338 | Registered: 19 January 2006Reply With Quote
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Just curious with the nice 260Accubond in 375 why the move to 9.3?

Trust me I know the "just to be different" I have plenty of those. Just curious of your anticipated advantage?


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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No intended advantage. I want a 9.3 and I wanted a different one.I was going to use a 300 win mag case but I already have a 6.5 on one.
 
Posts: 227 | Location: West Central Sask | Registered: 16 December 2000Reply With Quote
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Simple: Wildcatting for the sake of Wildcatting... Kudos tu2
 
Posts: 2268 | Location: Westchester, NY, USA | Registered: 02 July 2007Reply With Quote
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Another version of the 35 newton Smiler
35,36 and 37 newton old


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
 
Posts: 27625 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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It may be quite like a Newton but it will be a hell of a lot easier to make!
 
Posts: 227 | Location: West Central Sask | Registered: 16 December 2000Reply With Quote
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quote:
Simple: Wildcatting for the sake of Wildcatting... Kudos

tu2


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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I like the possibilities of rechambering a 9,3x62 to equal the 375 HH


577 BME 3"500 KILL ALL 358 GREMLIN 404-375

*we band of 45-70ers* (Founder)
Single Shot Shooters Society S.S.S.S. (Founder)
 
Posts: 27625 | Location: Where tech companies are trying to control you and brainwash you. | Registered: 29 April 2005Reply With Quote
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A 375 Ruger necked to 9.3mm with a 286 gr Nosler Partition is a pretty serious rifle. What bullets were you planning on shooting and what were you planning on shooting them at??
 
Posts: 2451 | Location: manitoba canada | Registered: 01 March 2001Reply With Quote
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quote:
Originally posted by boom stick:
I like the possibilities of rechambering a 9,3x62 to equal the 375 HH

that was achieved many yrs ago with the 9,3x64B...286gn@2700mv.
 
Posts: 9434 | Location: Here & There- | Registered: 14 May 2008Reply With Quote
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quote:
Originally posted by Trax:
quote:
Originally posted by boom stick:
I like the possibilities of rechambering a 9,3x62 to equal the 375 HH

that was achieved many yrs ago with the 9,3x64B...286gn@2700mv.

IMR4350
Max 76gr 2690 / 819 113%
74gr 2621 / 798 110%
72gr 2551 / 777 107%(most accurate)
The 64B case has a capacity of 88gr The H&H case has a capacity of 95.3gr.The 375 Ruger 99gr So the 9.3 X 375 will have slightly less
So which one has to be loaded to the bag to get equal results.
What should we call it?
I vote for the 9.3 Emperor

Again for me anyways Ruger brass is easier and cheaper to find.
Rich
 
Posts: 227 | Location: West Central Sask | Registered: 16 December 2000Reply With Quote
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quote:
Originally posted by snowman:
A 375 Ruger necked to 9.3mm with a 286 gr Nosler Partition is a pretty serious rifle. What bullets were you planning on shooting and what were you planning on shooting them at??


The partitions sound about right although Barnes is supposed to have something new this year

Once it's built I will try it out on a universal target first (Anterless Mule Deer as I seem to get drawn every year)
Primarily it will be use for Moose and Elk and One Up Manship

Now I have to find or develop a stock pattern I like and then pick a color.

Rich
 
Posts: 227 | Location: West Central Sask | Registered: 16 December 2000Reply With Quote
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The 375 Ruger case is very close to the same capacity as the 375 Wby. The 9.3/375 Ruger will likely beat the 9.3x64 by about 150 fps maybe 200 at the most. About the same as the difference between the 375H&H and the 375 WBY. Or the same velocity at a lot less pressure.
 
Posts: 2451 | Location: manitoba canada | Registered: 01 March 2001Reply With Quote
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RR, are you purchasing the reamer? If so are you willing to sell it after you are done? I was planing on doing the same thing. I am willing to buy the reamer when you are done.
 
Posts: 81 | Location: whidbey island | Registered: 15 March 2007Reply With Quote
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quote:
Originally posted by RR:
quote:
Originally posted by Trax:
quote:
Originally posted by boom stick:
I like the possibilities of rechambering a 9,3x62 to equal the 375 HH

that was achieved many yrs ago with the 9,3x64B...286gn@2700mv.

IMR4350
Max 76gr 2690 / 819 113%
74gr 2621 / 798 110%
72gr 2551 / 777 107%(most accurate)
The 64B case has a capacity of 88gr The H&H case has a capacity of 95.3gr.The 375 Ruger 99gr So the 9.3 X 375 will have slightly less
So which one has to be loaded to the bag to get equal results.
What should we call it?
I vote for the 9.3 Emperor

Again for me anyways Ruger brass is easier and cheaper to find.
Rich


Try the CEB bullets

http://www.b-mriflesandcartridges.com/9-3-B-M.html

1 -12 twist?

Plz keep the site updated as to your progress.

coffee

Check this for some idea as to expected performance

http://www.customguns.us/366dgw.htm
 
Posts: 404 | Registered: 08 May 2005Reply With Quote
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quote:
Originally posted by derf9.3:
RR, are you purchasing the reamer? If so are you willing to sell it after you are done? I was planing on doing the same thing. I am willing to buy the reamer when you are done.


My barrel maker has an existing reamer in 338x375 Ruger This one will just be a matter of a different pilot bushing.


I Bin Therbefor

As my barrel maker is supposedly retired it may be 2 or 3 months until I see my rifle back.

Rich
 
Posts: 227 | Location: West Central Sask | Registered: 16 December 2000Reply With Quote
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quote:
Originally posted by RR:

My barrel maker has an existing reamer in 338x375 Ruger This one will just be a matter of a different pilot bushing.
Rich


Maybe I am missing something,or just having a temporary brain phart.

BUT, it doesn't look like just a different pilot bushing to me, so far.

Even if your gunsmith uses a different pilot, how do you expect him to cut the NECK portion of your proposed chamber?

The .338/.375 Ruger reamer will cut the body of the chamber for the new case just fine, but it won't be big enough at the neck portion of the reamer to cut a neck for a 9.3 (.366") bullet, will it?


My country gal's just a moonshiner's daughter, but I love her still.

 
Posts: 9685 | Location: Cave Creek 85331, USA | Registered: 17 August 2001Reply With Quote
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The .338/.375 Ruger reamer will cut the body of the chamber for the new case just fine, but it won't be big enough at the neck portion of the reamer to cut a neck for a 9.3 (.366") bullet, will it?

I do it with a neck throat reamer. I've used my 7mm reamer for wildcats up though 416 using a different pilot and a neck/throat or in one case a neck and separate throat reamer.


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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quote:
Originally posted by ramrod340:
quote:
The .338/.375 Ruger reamer will cut the body of the chamber for the new case just fine, but it won't be big enough at the neck portion of the reamer to cut a neck for a 9.3 (.366") bullet, will it?

I do it with a neck throat reamer. I've used my 7mm reamer for wildcats up though 416 using a different pilot and a neck/throat or in one case a neck and separate throat reamer.



Paul - Your way will certainly work.It is what I basically do with some of my wildcats. With others I use three reamers...one for the body, a neck reamer for the neck, and another for the throat. I often use a separate throat reamer when I want a different angle of throat in a chamber which is otherwise identical to chambers in rifle barrels I already have.

Good examples of that are chambers I custom make for different kinds of bullets. Often, in a chamber designed for jacketed bullets, I will use a 3-degree (included) throat. But in barrels intended for peak cast bullet accuracy I frequently cut a 1-degree included throat, a 1-1/2 dgree included throat, or at the steepest, a 2-degree included throat.

Which angle I prefer depends sometimes not just on bullet construction/material, but on bullet shape as well. Bore-riding bullets often get a different throat angle than full diameter nosed bullets, depending on my experiences on what works best.

I have throating reamers made especially to do just that work, and in various "calibres".

I was just trying to point out to the original poster that a different pilot is not enough by itself to get the job done. A reamer willl also be required to cut the neck, whether or not it is part of a neck & throating reamer or a full chambering reamer.

So, regardless which throat one wants, he has to have a correct size neck reamer too. I usually also have at hand at least a few different diameter neck reamers for each caliber too, so I can get the chamber neck fit and clearances I specifically want.

It ain't rocket science, but getting the entire chamber done requires all the proper tools,as you already know.

Best wishes,

AC


My country gal's just a moonshiner's daughter, but I love her still.

 
Posts: 9685 | Location: Cave Creek 85331, USA | Registered: 17 August 2001Reply With Quote
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My first reaction was "why do this?". I own more wildcats than regulars, but you always do it with the knowledge that you are limiting your ammo available and ultimate disposal options. In this case, the proposed wildcat is further saddled with the age old issue of being "almost legal" for its intended use. I finally realized that it makes a lot of sense as a rechamber. If you're going with a 9.3, this will be the biggest bang.
 
Posts: 1238 | Location: Lexington, Kentucky, USA | Registered: 04 February 2003Reply With Quote
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Alberta
I know how it's done I just didn't realize I had to give a blow by blow description
Art S
It's not going to Africa.I simply wanted a large 9.3.And as I reload everything it is no biggy.As for disposal that's not going to be my problem either Wink
 
Posts: 227 | Location: West Central Sask | Registered: 16 December 2000Reply With Quote
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quote:
Originally posted by RR:
Alberta
I know how it's done I just didn't realize I had to give a blow by blow description
Art S
It's not going to Africa.I simply wanted a large 9.3.And as I reload everything it is no biggy.As for disposal that's not going to be my problem either Wink


RR-

Didn't mean to offend you and was not implying that you are either stupid or ignorant. I'm pretty sure you aren't either one.

But, as you posted this:

"My barrel maker has an existing reamer in 338x375 Ruger This one will just be a matter of a different pilot bushing."

And I don't know you, I had no idea if your barrel guy perhaps was a neighboring home tinkerer, or if you simply forgot about the neck, or what. I Just didn't want water thrown on your parade later down the line after you had a bunch of money already into the project. That's no time to find out you also need to buy a neck reamer for the 'smith.

And, of course, as these posts and threads are learning experiences for all kinds of guys (in terms of their experience levels), I included more than the required detail for any one specific person. Hence my comments on different throat angles for other than hunting rifles.

Personally I love the 9.3s, and can see very clearly why you are doing exactly what you have in mind. My own favorites are the 9.3x62 and 9.3x74-R in the older chamberings, and the 9.3 WSM in the newer wildcats. But that's only because I have all kinds of rifles using cartridges in the 9.3x64 power range, so have no lust for another at that level.

I think maybe one I could really use for the deer woods would be a 9.3 on the .308 Winchester case. Of course, that would just be an "anemic 9.3x57 almost equivalency" (to coin a phrase), but it might be fun to build and play with and would make a good 100 yard moose gun in the Alberta/Sask bush too.

Anyway, your project sounds good to me. Hair on ya, and GOOD LUCK!!

AC


My country gal's just a moonshiner's daughter, but I love her still.

 
Posts: 9685 | Location: Cave Creek 85331, USA | Registered: 17 August 2001Reply With Quote
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A/C
I gave up trying to catalog his reamers .I will just say he has the biggest collection I know of. It's too bad he no longer takes on work except for old friends.
It's funny you mention a 9.3 on a 308 when I was telling another buddy about it He informed me he was doing a .375 on a 308 in an 88 win.That should make a dandy little thumper as well. Seeing it's on a lever he could call it the 9.5-51 0r 38-51
 
Posts: 227 | Location: West Central Sask | Registered: 16 December 2000Reply With Quote
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quote:
Originally posted by RR:

It's funny you mention a 9.3 on a 308 when I was telling another buddy about it He informed me he was doing a .375 on a 308 in an 88 win.That should make a dandy little thumper as well. Seeing it's on a lever he could call it the 9.5-51 0r 38-51


Yes, it would be sort of an upgrade power-wise from the .358 Winchester. I have had several somewhat similar upgrades based on the 8 x 57 case. Of course that is simply the 9.5x57 Mauser,but it's still a really good little cartridge (and so is the 9.3x57).

I like the 9.5x57-R so much I had a custom Ruger No. 1 built for it about 16 or so years ago. I call it the .38-70. It will shoot either the rimmed case or the rimless case interchangeably with no adjustments to the rifle.


My country gal's just a moonshiner's daughter, but I love her still.

 
Posts: 9685 | Location: Cave Creek 85331, USA | Registered: 17 August 2001Reply With Quote
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quote:
Originally posted by Alberta Canuck:
[QUOTE]Originally posted by RR:


I like the 9.5x57-R so much I had a custom Ruger No. 1 built for it about 16 or so years ago. I call it the .38-70. It will shoot either the rimmed case or the rimless case interchangeably with no adjustments to the rifle.

fishingThat's exactly the case with my #1 in 22Jet. It shoots and ejects the rimmed and rimless. The ejection part was serendipitous for me but appreciated. Says something about the #1 beer roger


Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
 
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003Reply With Quote
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I had tables the Easter show in Calgary Friday and Saturday.I met a very nice man named Don Thompson who builds custom rifles out of Holden Alberta.Don has a line of wildcats built on the 375 Ruger.I noticed a 338,9.3 and a 416 all somewhat improved.His rifles have made it to Africa and were used with some success . His business was called Holden Precision.Well worth checking out.Met a very nice builder from Van Isle named Vern Swarbrick.He runs the Silhouette Shop. Another good man to check out.
I had a very good show and might have made it home with most of my profits if I hadn't found that damn 43 Winchester.

Rich
 
Posts: 227 | Location: West Central Sask | Registered: 16 December 2000Reply With Quote
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