Home Forums Hunting & Shooting Custom Rifles & Wildcats Here is my stumper: 30 Newton we Need BRASS or loaded ammo.

This is the deal , we need loaded brass or any information regarding what brass fireforms to fit 30 newton. Please inquire if you are knowledgable in the older generation of gunsmith or very knowledgable in older guns. For this era of firearms is done gone!!!I am anxious to hear from all of you.

The info I have says to use 8x68s brass. FL size in the Newton die, trim and fireform.

But it's a lot easier to just buy the brass from Midway:

http://www.midwayusa.com/product/485220/quality-cartridge-reloading-brass-30-newton-box-of-20

IIRC, gunwriter Jim Foral has written about making 30 Newton cases from fireformed 7mm Rem Mag or 300 Win Mag cases, I can't specifically remember which. I have seen Jim's fireformed 30 Newton cases and they do look a little odd, as there is a void/space just forward of the belt that doesn't expend to the diameter of the 30 Newton chamber, but they must work OK.

Jeff

Jeff,

The 30 Newton was/is not a belted cartridge. You may be thinking of the 30 Belted Newton which is a different cartridge not designed by Charles Newton.

Check with these guys for loaded ammo:

http://www.pacificcoastcartridge.com/ammo.htm

8X68 brass is the answer you are looking for.

Ted

First; What kind of rifle do you have? Second; If you chop off a belted mag case, will the belt enter the back of your chamber, and fit into your bolt face? Third; One desperate way to get these cartridges is to form them from undersized standard belted cases. The brass bulges out ahead of the belt. Supposedly, after five reloads the brass has flowed enough to iron out the groove ahead of the belt. The closest modern case is the 358 Norma Magnum. So, if you can find a source for the real deal, jump on it. I did use undersized H&H mag. brass to get my samples for Hornady to make forming dies for my 8mm Wildcat, which uses 375 Ruger brass, squeezed down to approximate the 8 x 68 S Schuler. But these Ruger cases are really tough to form down to the Schuler's profiles. My bulged out rounds were promptly retired, as soon as I had real Ruger cases ready. It's bad gunsmithing, IMO. But since my wildcat is 2.6 inches long, the same as the 375 Ruger, it was the only way to go in a pinch. PM me if you need to.

The answer you are looking for is .375 Ruger brass. Available from Hornady.

That is, unless you have a .300 "Belted" Newton.

FWIW: In times past, folks did form .30 Newton brass from belted mag brass by trimming down the belt until they JUST chamber. I have some belted brass for my .35 Newton that has been formed that way.

And yes, folks did, at one time, form them from 8x68S, however the rim is a bit smaller. .512" versus .525" . Hope this helps...

http://www.qual-cart.com/headstamp.htm

Or as the man said .375 Ruger

I use 8x68s brass for mine.

Yes, I know that the 30 Newton doesn't have a belted case, but in the old days, lot of people who had 30 Newtons fed them with fire-formed 7mm Rem Mag or 300 Win Mag parent cartridges. The 30 Newton case diameter is slightly larger than the belt diameter of the 7mm Rem Mag and 300 Win Mag parents cases. When those cases are fire-formed, the brass expands to fill the 30 Newton chamber, except of a small section just forward of the belt.

Jeff

I use 8x68S brass from Huntington's. I tried 375 Ruger and wrinkled 7 out of 10 necks when doing the final step. If you have forming dies you might be able to use the 375 Ruger.

I have 3 1st Model Newtons, a 256 and 2 in 30 U.S.G. I have owned 1st Models in 30 Newton, but traded them off because I felt that making cases was more aggrivation that it was worth. It is too bad that the Newton rifles and cartridges were so far ahead of their time that the general public couldn't appreciate the performance that they offered.

Jeff

What is the starting point of powder and maximum of powder charge for the 30 newton....???? anyone have any ideas.? What have you had the best success with?

The Newton case is slightly bigger than the 300 WinMag case. I would use med 300 WM loads as a start point.

there seems to be alot of confution on the 30 newton. it is slightly smaller than belted mag. i think where this comes from is the cartrage named 30 belted newton (30-338. 308 norma) they can be formed from 7mm mag . i have done it my self. but for a true non belted origonal newton you physically cant chamber a belted case in a newton chamber, it is smaller. i have one in hand and the head size measures 525 the 300 wby in hand measures 529 with a belt dia of 535 all belted mags are the same. so it wont chamber.
load data for the 30 newton you can find in speer vol 1.
they list 4831-4895 4350 4064. for 180s
cases can be purchased from quality cartrage. spendy but worth it to keep those old newtons shooting.
dies from just about all the die makers.

My new 30 Newton brass, from quality cartridge co, measures .5286" at a point .200" ahead of the base. The brass is of decent quality although the headspace varies a bit more than I would like. I will be a little cautious working up loads. Don't want to lose any brass at the price. I figure anything over 3000 fps with a 180 will be good enough for me. GD

interesting. i mesured this cartrage again in front of the head and it is larger. the mag brass might fit. i think the origonal newton has a kinda small rebated rim. the cartrage i have that came with the rifle has a rupture at the base so mesurments are not too reliable. the 30 newton should do 3000 with modern powders. you can find what cartrage is close in powder capacity and start from there. problly 308 norma will be close. how is that quality cartrage brass. i am planning on that route also. please keep me posted my son and are both going to build 30 newtons.

That's what I did with .338 brass

According to Ken Howell's cartrige book the 30 Newton holds 120gr of water. the 30 Belted Newton is 119 and the 300 Winchester 116gr.
I would start with the middle 300 Winchester load and work up from there. I would start with RL-22 or IMR 4831