30 Newton

[truck driver]

With all the talk about the 35 Newton I was wondering if anyone had some info about the 30 Newton?
It would be interesting to compare it to the 300 magnums we have today.
I presume that the 35 was a necked up 30, please correct me if I'm wrong. :mrgreen:

 

[RememberBaker]

You are right, the .35 is a necked up .30.
I have my Great-Grandfathers .30 Newton, I've loaded ammunition for it, but I haven't shot it yet.

 

[DrMike]

The 30 Newton was a more available chambering. It is another skookum round.

 

[RememberBaker]

The 30 Newton was a more available chambering. It is another skookum round.

Skookum?
Somebody help me out here so I don't have to Google it.

 

[Guest]

Great, dandy, superb.

 

[DrMike]

Great, dandy, superb.

Yup! Chinook word indicating a very positive connotation: "right on!"; excellent; powerful.

 

[Guest]

The 30 Newton is a good round, and runs right in with the 300NormaMag and the 300WinMag. With modern powders and modern action steel strength, it's likely underpowered a bit running 180s at about 3k, but I'd only push it if I used modern 375Ruger brass and a modern production action. If you neck down 375 brass, you may have to turn the necks to keep them from being too thick.

 

[SJB358]

I'd actually build a Newton, no questions asked really. It'll run with any of the others. I don't know if I would like it anymore than a WSM, WM or H&H, but it is certainly pretty cool. Knowing I could make cases from the 375 Ruger makes it somewhat appealing.

Cartridge : .30 Newton
Bullet : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 78.823 grain H2O = 5.118 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-22

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 82 60.40 2414 2329 31705 9937 91.1 1.579
-18.0 84 61.91 2476 2451 33948 10253 92.4 1.537
-16.0 86 63.42 2538 2575 36357 10555 93.7 1.496
-14.0 88 64.93 2601 2703 38942 10844 94.8 1.450
-12.0 90 66.44 2663 2834 41722 11116 95.8 1.403
-10.0 93 67.95 2725 2969 44710 11371 96.8 1.359
-08.0 95 69.46 2787 3105 47924 11606 97.6 1.317
-06.0 97 70.97 2849 3245 51351 11822 98.3 1.276
-04.0 99 72.48 2911 3387 55010 12016 98.9 1.236
-02.0 101 73.99 2972 3531 58934 12187 99.3 1.198 ! Near Maximum !
+00.0 103 75.50 3034 3678 63148 12334 99.7 1.162 ! Near Maximum !
+02.0 105 77.01 3094 3827 67675 12456 99.9 1.126 !DANGEROUS LOAD-DO NOT USE!
+04.0 107 78.52 3154 3977 72546 12551 100.0 1.092 !DANGEROUS LOAD-DO NOT USE!
+06.0 109 80.03 3214 4129 77791 12624 100.0 1.060 !DANGEROUS LOAD-DO NOT USE!
+08.0 111 81.54 3273 4282 83447 12692 100.0 1.028 !DANGEROUS LOAD-DO NOT USE!
+10.0 113 83.05 3332 4438 89557 12754 100.0 0.997 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 103 75.50 3166 4005 76433 11877 100.0 1.073 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 75.50 2843 3232 50344 12210 95.1 1.279


Cartridge : .30 Newton
Bullet : .308, 180, Nosler AccuBond 54825
Useable Case Capaci: 78.823 grain H2O = 5.118 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Hodgdon H4831 SC

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 81 59.20 2360 2227 31952 9129 88.2 1.570
-18.0 83 60.68 2420 2341 34161 9432 89.6 1.527
-16.0 85 62.16 2480 2458 36530 9726 90.9 1.486
-14.0 87 63.64 2540 2579 39066 10011 92.1 1.441
-12.0 89 65.12 2601 2703 41786 10285 93.2 1.395
-10.0 91 66.60 2661 2830 44703 10547 94.3 1.352
-08.0 93 68.08 2722 2961 47837 10796 95.3 1.311
-06.0 95 69.56 2782 3094 51205 11030 96.2 1.270
-04.0 97 71.04 2843 3230 54826 11248 97.0 1.232
-02.0 99 72.52 2904 3370 58694 11450 97.7 1.194 ! Near Maximum !
+00.0 101 74.00 2964 3512 62842 11633 98.3 1.158 ! Near Maximum !
+02.0 103 75.48 3025 3656 67306 11797 98.9 1.124 !DANGEROUS LOAD-DO NOT USE!
+04.0 105 76.96 3085 3804 72118 11940 99.3 1.090 !DANGEROUS LOAD-DO NOT USE!
+06.0 107 78.44 3145 3953 77311 12062 99.6 1.057 !DANGEROUS LOAD-DO NOT USE!
+08.0 109 79.92 3205 4106 82925 12160 99.9 1.026 !DANGEROUS LOAD-DO NOT USE!
+10.0 111 81.40 3265 4260 89005 12235 100.0 0.995 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 101 74.00 3098 3836 74804 11406 100.0 1.076 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 101 74.00 2784 3097 51290 11273 92.5 1.266

 

[truck driver]

It's a good thing I already have the Weatherby 300 mag. or my Whelen project would be in danger. It would be simple to rechamber a 30-06 to 30 Newton 8) :mrgreen:

 

[RememberBaker]

It's a good thing I already have the Weatherby 300 mag. or my Whelen project would be in danger. It would be simple to rechamber a 30-06 to 30 Newton 8) :mrgreen:

I'm not sure it would be as simple as rechambering an -06, you might need a magnum action with its larger bolt face or maybe a standard bolt face can be altered?

 

[Guest]

Standard bolt face can be machined to larger casehead fairly easily. My concern would be whether or not the -06 has a 22 or 24" barrel. If I were building a Newton, I'd opt for a 24" configuration. Scotty went the other direction and his 35 Newton is built with a shorter barrel.For the 35, which is purposed a little differently, the shorter tube makes more sense to me. I have a 22" barrel on my 350RemMag. But for a 30cal magnum, for me it starts at 24" and I prefer my 26" 'bee.

 

[SJB358]

I'm not sure how the 22 will work out but man, it's handy. If I were to rebarrel, I'd likely get a 24-25" barrel knowing you can always lop it off.

 

[Guest]

You don't own a barrel-stretcher, Scotty? I have mine in the garage. It's hanging on the same set of skyhooks as my board stretcher. Right next to the chemlight batteries and that old box of leftover grid squares.