Home Forums Hunting & Shooting Custom Rifles & Wildcats 30 NEWTON- RELOADING??????? question

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?

Sir:

As I'm sure you are aware, loading data is pretty slim for the .30 Newton. The only loading manual that I have that has data printed is the Speer #4 Wildcat manual.

You don't say what bullet you wish to use, but I'm assuming likely the 180 gr.

It lists a starting load:

IMR-4350 of 65 grs. for a muzzle velocity of 2685 f.p.s.
and a Max load:

IMR-4350 of 71 grs for a muzzle vel. of 2958 f.p.s.

and also with H-4831:

Start @ 69.0 gr.s for a vel. of 2650 f.p.s.

and Max @ 75 grs. for a vel. of 3005 f.p.s.

I'd be VERY leary of those top loads. Speer is known for not having any pressure testing equipment until after Manual #9.

Best to use a chronograph and stop when reasonable velocity is attained. If you are using an original Newton rifle, remember that the metal is near 100 yrs old. Metallurgy had made some advances since then.

Also one could likely use data for the .30/.338, but again I'd stop well short of top loads.

I, myself, have an original .35 Newton, and I have NO intention of trying to make a magnum out of it. 100 f.p.s. more than a .35 Whelen will suit me just fine!

GH

Load data.com has 19 loads for the 30 Newton from the pages of Rifle #130.

I'd cut and paste them but I don,t know how with the stupid IPad I'm using.

I'll do it when I can get on a real computer.

They also show five loads from COW.

Here they are, I hope you can make heads or tails of it.

.30 Newton

Warning! Notes: All loads fired in First Model Newton Rifle with 24-inch barrel. All jacketed bullet loads used Federal 215 primers. Velocities recorded five feet from muzzle. All testing done at 100 yards. (Rifle Issue 130 - July, 1990)
Be Alert: Publisher cannot be responsible for errors in published load data.

Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS)
150 Speer RN IMR IMR-4350 73.0 3,035
Remarks: .308-inch bullet; accuracy: D; poor
165 Speer RN IMR IMR-4831 72.0 2,917
Remarks: .308-inch bullet; accuracy: C; fair accuracy
165 Speer RN Hodgdon H-4831 73.0 2,907
Remarks: .308-inch bullet; accuracy: B; top accuracy
165 Speer RN Hodgdon H-414 61.0 2,701
Remarks: .308-inch bullet; accuracy: C+; only good Ball powder load
180 Sierra RN Hodgdon H-4831 68.0 2,595
Remarks: .308-inch bullet; accuracy: C; best load with bullet
180 Speer RN Hodgdon H-4831 68.0 2,670
Remarks: .308-inch bullet; accuracy: C+; best load with bullet
180 Sierra RN Hodgdon H-380 68.0 2,909
Remarks: .308-inch bullet; accuracy: D; maximum load, caution!
200 Speer RN Hodgdon H-4831 66.0 2,593
Remarks: .308-inch bullet; accuracy: C; pressure low
200 Speer RN IMR IMR-7828 69.0 2,510
Remarks: .308-inch bullet; accuracy: D; wide target dispersion
150 Sierra SP Hodgdon H-4831 75.0 2,985
Remarks: .311-inch bullet; accuracy: A; pressure OK
150 Speer SP IMR IMR-4831 75.0 3,081
Remarks: .311-inch bullet; accuracy: B; pressure OK
150 Speer SP IMR IMR-4350 74.0 3,152
Remarks: .311-inch bullet; accuracy: B; maximum load
150 Speer SP Hodgdon H-380 68.0 3,142
Remarks: .311-inch bullet; accuracy: D; maximum load
180 Speer RN Hodgdon H-4831 67.0 2,685
Remarks: .311-inch bullet; accuracy: A; moderate pressure
180 Speer RN Hodgdon H-4831 72.0 2,825
Remarks: .311-inch bullet; accuracy: A; pressure still OK
180 Speer RN Hodgdon H-414 64.0 2,718
Remarks: .311-inch bullet; accuracy: B; poor loading density
180 Speer RN IMR IMR-4831 73.0 2,854
Remarks: .311-inch bullet; accuracy: B+; second best powder
180 Speer RN IMR IMR-4350 70.0 2,849
Remarks: .311-inch bullet; accuracy: B+; pressure OK
180 Speer RN IMR IMR-7828 72.0 2,759
Remarks: .311-inch bullet; accuracy: C; wild

�2011 PPC, INC. All Rights Reserved. LoadData is registered in the U.S. Patent & Trademark Office

to all persons responding to this note regarding ballistic charts fr the 30 newton I would like to thank each and everyone of you truly and sincerely for your help as far as bullet weight goes I was inclined to shoot a 150gr bullet but all ballistics and information is welcome so please keep up the great information if you have access to it. as you know, this is a tough rifle to find information for!!!!
once again, a sincere thank you B. BOYD

by the way we found 30 newton brass at quality in texas there were 2 other places we found it as well so if you need any information regarding the brass please email me.
thank you again

Here is one load from ammoguide.com.


View Reloading Data for the
.30 Newton


Bullet Wt. 168g
Powder Type. IMR-4350
Charge. 65 grains
Muzzle Vel. 3040 fps
K.E. 3449(ft-lbs)
Pressure Barrel Length 25.5(in)
Overall Length 3.540(in)



--------------------------------------------------------------------------------


Load submitted by 'gadgetman'.
This load was developed using Hornady pointed, jacketed, boat-tailed, match bullets (A Max).
In terms of power, the developer considers this an average load.
The velocity measurement is by chronograph.
RWS cases and CCI Large Rifle primers were used in development.

COMMENTS:
Cases formed from RWS 8x68S cases. Fireformed and neck turned to 0.0145 in. Extremely accurate load (under half MOA)

Here are the five from COTW.

.30 Newton (Cartridges of the World)

Warning! Notes: General Comments - The 30 Newton is a rimless, magnum-type cartridge similar to the 30-06, but larger in diameter. Neither ammunition nor cases are readily available since it has been obsolete for more than 50 years. A limited quantity of new cases was manufactured right after World War II by Richard Speer. The 30 Newton is powerful enough for any North American big game. The 300 H&H Magnum and 300 Weatherby Magnum outperform it, although its performance can be improved by handloading with modern powders. (Cartridges of the World 10th Edition)
Be Alert: Publisher cannot be responsible for errors in published load data.

Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS)
150 SP IMR IMR-4320 67.0 3,175
Remarks: energy: 3,361
150 SP IMR IMR-4831 76.0 3,100
Remarks: energy: 3,206
180 SP IMR IMR-4320 62.0 2,840
Remarks: energy: 3,235
180 SP IMR IMR-4831 73.0 2,890
Remarks: energy: 3,350
200 SP IMR IMR-4350 66.0 2,730
Remarks: energy: 3,318

�2011 PPC, INC. All Rights Reserved. LoadData is registered in the U.S. Patent & Trademark Office

If you have Quickload software the .30 Newton is listed. It shows a 51 K PSI. limit so you can be as conservative as you care. The steel from that era is not as suspect to me as the wood. The Newton stocks were built very light for the potential recoil developed. At 62.5 K psi. the data looks like a .300 Win Mag.

My uncle has an original newton, what a shapely rifle wearing a finely tailored piece of wood! Gun is 99% but ive always fancied working up a few loads for it. Very helpful info. We've got roughly 200rds of brass, and 60 original loaded rounds which are speer and are in a very cool charcoal cover box with a silver lion on it.

are you interested in selling that stuff acooper1983?

No, my uncle is a very wealthy man, and a collector of fine arms, He has to my knowledge one of the largest winchester collections in the midwest totalling 500+ rifles, 73s 76s 86's multiple henrys, sharps, etc. He's always been fascinated with newtons and i know he looked long and hard to come by those boxes of ammo, he says thier rare as hens teeth to find them in mint boxes and all, and i think the brass he wants me to reload for him. If something comes up and he decides to sell any of it, i will certainly let you know.