300 ultra mag ?

[jiggs]

Is any one shooting a 300rum and using a 200 gr bullet that is going faster than 3100 fps ,if so what powder are you using and how much ?

 

[Idaho_Elk_Huntr]

I shooting 200 grain Accubonds using IMR 7828 and RL 25 and exceeding that speed. I am flattening primers with the IMR and cratering them with the RL 25. I am over the the max with both powders. Get the manual and start low and work up. I know you didnt want to hear that

 

[FOTIS]

The saami max is set for a little under 65K psi for the 300 RUM.
The below loads are spot on and I know because I have reloaded for at least 15 RUMS in the 300. This is where it gets tricky. There is some phenomenally strong brass available in the Rums and even though most are way in the red, pressures are not showing. 3150 or so is max in a 26" barrel with a 200 grain. I have seen people claim 3250 but honestly that is ridiculously not safe! This is why the 30-378 does about 3250 before pressures show, so how can the RUM do the same with way less capacity. Remember........TINSTAAFL



There is no such thing as a free lunch!




Cartridge : .300 Rem Ultra Mag
Bullet : .308, 200, Nosler AccuBond 54618
Cartridge O.A.L. L6: 3.598 inch or 91.39 mm
Barrel Length : 26.0 inch or 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 64000 psi, or 441 MPa

or a maximum loading ratio or filling of 110 %

These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

178 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
ADI AR 2218 103.4 100.3 6.50 3117 99.9 64000 14552 1.287 ! Near Maximum !
Vihtavuori N570 99.1 95.2 6.17 3076 99.6 64000 14274 1.316 ! Near Maximum !
Hodgdon H870 105.1 98.8 6.40 3044 100.0 64000 13591 1.324 ! Near Maximum !
Hodgdon Retumbo 102.6 94.0 6.09 3017 100.0 64000 12284 1.311 ! Near Maximum !
Vihtavuori N560 91.3 85.0 5.51 3013 100.0 64000 12750 1.307 ! Near Maximum !
Accurate MAGPRO 91.5 88.6 5.74 3009 100.0 64000 12966 1.317 ! Near Maximum !
Norma MRP 2 98.5 89.7 5.81 3003 100.0 64000 12583 1.325 ! Near Maximum !
IMR 7828 95.5 84.5 5.48 3002 100.0 64000 12316 1.298 ! Near Maximum !
IMR 7828 SSC 90.3 84.5 5.48 3002 100.0 64000 12316 1.298 ! Near Maximum !
Ramshot Magnum (Big Boy) 93.4 91.1 5.90 3000 100.0 64000 12379 1.314 ! Near Maximum !
PB Clermont PCL 517 93.7 91.1 5.91 2999 100.0 64000 12369 1.314 ! Near Maximum !
SNPE Vectan SP 12 93.6 91.0 5.90 2998 100.0 64000 12340 1.314 ! Near Maximum !
Hodgdon 50BMG 107.7 99.6 6.45 2994 93.3 64000 13803 1.310 ! Near Maximum !
ADI AR 2213 91.6 84.3 5.46 2993 100.0 64000 12265 1.294 ! Near Maximum !
Vihtavuori 24N41 102.3 99.3 6.43 2992 96.4 64000 13401 1.303 ! Near Maximum !
Vihtavuori 20N29 109.6 107.4 6.96 2989 98.3 64000 13443 1.331 ! Near Maximum !
ADI AP 2214 95.1 89.9 5.83 2988 100.0 64000 12010 1.297 ! Near Maximum !
Hodgdon H1000 100.0 90.1 5.84 2985 100.0 64000 11976 1.297 ! Near Maximum !
Raufoss RA15 91.7 84.4 5.47 2979 100.0 64000 12120 1.313 ! Near Maximum !
Alliant Reloder-22 91.7 84.4 5.47 2979 100.0 64000 12120 1.313 ! Near Maximum !
Bofors RP5/NP ~approximation 91.7 84.4 5.47 2979 100.0 64000 12120 1.313 ! Near Maximum !
Winchester WXR 94.1 84.8 5.50 2979 100.0 64000 12141 1.313 ! Near Maximum !
Hodgdon US 869 107.3 104.1 6.74 2978 96.5 64000 13397 1.319 ! Near Maximum !
Alliant Reloder-25 96.3 87.2 5.65 2974 100.0 64000 11709 1.316 ! Near Maximum !
SNPE Vectan SP 13 109.3 101.7 6.59 2972 99.3 64000 12916 1.329 ! Near Maximum !
Rottweil R905 93.2 84.2 5.46 2966 100.0 64000 12039 1.309 ! Near Maximum !
Bofors RP14 ~approximation 90.2 82.1 5.32 2943 100.0 64000 11581 1.303 ! Near Maximum !
Hodgdon H4831 SC 90.9 83.7 5.42 2942 100.0 64000 11721 1.300 ! Near Maximum !
Hodgdon H4831 94.5 83.7 5.42 2942 100.0 64000 11721 1.300 ! Near Maximum !
PB Clermont PCL 513/520/9520 110.0 102.4 6.63 2941 98.4 61580 12995 1.350 ! Near Maximum !
Vihtavuori N170 103.1 92.9 6.02 2939 98.8 64000 12437 1.325 ! Near Maximum !
Accurate 8700 110.0 102.6 6.65 2936 99.1 59782 12861 1.354 ! Near Maximum !
Lovex-D1001 100.2 98.2 6.37 2921 96.8 64000 12381 1.318 ! Near Maximum !
Vihtavuori N160 95.0 83.0 5.38 2899 100.0 64000 11061 1.303 ! Near Maximum !
Vihtavuori N165 94.4 85.0 5.51 2892 100.0 64000 10835 1.317 ! Near Maximum !
Accurate 3100 97.3 83.8 5.43 2877 100.0 64000 10688 1.345 ! Near Maximum !
Hodgdon Hybrid 100V 90.2 76.8 4.98 2847 100.0 64000 9974 1.320 ! Near Maximum !
NC A3502 ,test only 110.0 98.0 6.35 2760 83.4 50429 12940 1.433
TLP A 502(RH) ,test only 110.0 98.0 6.35 2715 83.3 48638 12226 1.470
V1734 7-multiperf ,test only 110.0 98.0 6.35 1951 41.5 25407 6464 1.985

 

[Greg Nolan]

TINSTAAFL?
Pop,
This is a new era! "YES WE CAN" :lol: :lol: :lol:

I would offer for your consideration: A 200gr. bullet at 3100 fps. aint too shabby for most things without a REX behind it's name.
If the caliber isn't enough I'm looking for a 3000RUM. :grin:
Good Hunting
Elkhunt :roll:

 

[Richracer1]

Here is my load for my 300RUM:
Brass: R-P (all trimmed to 2.83")
Primer: GM215M
Bullet: 200AB
Powder: 95gn of Retumbo
COL: 3.635"
Ave FPS: 3137

 

[Antelope_Sniper]

Yes, I'm doing it with a case full of very slow non-canister powder.
As Pop said, most commercial powders are too fast to safely do this.
We are getting a little over 3200 in a 26" bbl.

 

[Guy Miner]

Retumbo, using Hodgdon's published load data.

It'll get you to 3150 and beyond. Heck, I clocked some Remington ammo, factory loaded w/200 gr Nosler Partitions at just slightly under 3200 fps - and a few rounds were just over that. This was from a 26" Remington barrel. Woke me right up! :shock:

 

[FOTIS]

TINSTAAFL?
Pop,
This is a new era! "YES WE CAN" :lol: :lol: :lol:

Who are you, Obama?????

 

[FOTIS]

Here is my load for my 300RUM:
Brass: R-P (all trimmed to 2.83")
Primer: GM215M
Bullet: 200AB
Powder: 95gn of Retumbo
COL: 3.635"
Ave FPS: 3137

Perfect.....

 

[OldMan]

As far as hot rodding a load, I remember being called down to a local gunsmith to look at a rifle. What he had was a Model 700 Remington that had been made into a 340 wby with one lug broken off the bolt! He showed me some fired cases that had been reloaded several times as evidenced by the shiney ejecter marks for every reload. What if both had broken at the same time? :shock: Grab a piece of metal and start bending it back and forth and it will eventually break, this happens to the bolt lugs with high pressure loads! I used to not pay a lot of attention to light marks on brass until this, NEVER AGAIN!

 

[jtoews80]

I sold my 30-378 today, in favor of a 300 RUM. Not sure if it was smart, yet we`ll see. It would do 3265 with 104 grns of Retumbo and leave a slight extractor mark with 105 and no difference in velocity from Norma brass. I could go more with weatherby, just had 100 cases that were Norma and a box and a half that were Wby.
I reduced to a deadly accurate 3150 with 101 grns of Retumbo and the holes were touching at 100yds if I let the barrel cool for 5 minutes between shots 2 and 3.

If I didn`t it would walk over 0.75`and open the group up to an inch. I shot WT deer " 300yds with that load, impact speed of 2750FPS, very effective and controlled expansion. Went thro ribs 3&4 from the back, thro the lungs into the spine and traveled thro the spine for 16-18 inches thro the hind quarter and shattered the femur and bullets leaving a shotgun like wound channel and exiting. Didn`t recover any bullet fragments, just bonemeal and shreaded tissue.

JT.

 

[Powerstroke]

+1 w/POP !

I've used RL-25 & Retumbo along with some N-165.
This is the first gun I've had that I've seen issues with listed book max loads. Nosler #6 Max I can't use with Retumbo & the 200grainers....

 

[FOTIS]

my 30-378 MKV Accumark

30-378
106gr Retumbo an 200 gr Accubonds at 3300 fps .8" at 200 yards

[/b]


NOT BAD HUH?

 

[Guy Miner]

The big .30's are terrific game takers... They can produce some great results.

Do be careful though guys...