Wanted .300 win mag

I'd be hard pressed to choose between the WSM and the plain vanilla 300 win mag.
 
Wingman,
Heres some more data that disagrees with your statement.
300 rum=180 gr (12 g) BTSP 3,256 ft/s (992 m/s) 4,238 ft·lbf (5,746 J)
30-378=180 gr (12 g) BST 3,420 ft/s (1,040 m/s) 4,676 ft·lbf (6,340 J)
 
The following table is compiled using published velocity figures for premium grade factory ammunition, not handloads. Ballistics data was calculated using factory velocities, Nosler 180 grain partition .308 diameter bullets with a ballistic coefficient of 0.458, and using the G1 ballistic tables for all calculations. (Not all the ammunition use the 180 grain Nosler Partition bullet, but for sake of fair comparison, this bullet was used in calculations in all cartridges, using factory velocities) In continuing with uniformity throughout comparison, trajectories were calculated implementing a maximum bullet rise above line of sight of three inches in computing trajectory tables.


.300 RUM 3250 -1.5 3026 2.4 2813 2.5 2610 -1.7 2417 -11.1
.30-378 Weatherby 3420 -1.5 3187 2.3 2967 2.5 2757 -1.2 2557 -9.4

Sorry Wingman,
There is no data that I can find to back up your claim, period.
 
Wingman, Apparantly you cant read data very well. Across the board a 100 -200 fps advantage to the 30-378 Weatherby from the 165 grain, 180 grain, and the 200 grain.

AMMUNITION BALLISTICS FOR: .300 RUM

VELOCITY
.300 RUM
165 PP 3350
180 TBBC 3250
180 SP 3230
180 Swift 3250
200 SP 3070

AMMUNITION BALLISTICS FOR: .30-378 Weatherby Magnum

VELOCITY
.30-378 Weatherby Magnum
165 BST 3500
180 X 3450
180 BST 3420
200 NOS 3160
 
Last edited:
Dhaffner, here are some pics of this gun that I took this morning. The scope and rings are not included for that price. However the scope is a varix II 4x12 40mm and burris bases and would consider selling them as a package but you would have to make me an offer is you want to go that way. Thanks Mark
 

Attachments

  • rum1.jpg
    rum1.jpg
    30.5 KB · Views: 388
  • rum2.jpg
    rum2.jpg
    52.2 KB · Views: 1,151
  • rum3.jpg
    rum3.jpg
    78.1 KB · Views: 1,138
  • rum4.jpg
    rum4.jpg
    62.7 KB · Views: 997
Wyoming, I have found conflicting data all over the web between the rum and 30-378. When I made my claim it was referenced from the barnes manual which is at least 5 years old. This is barnes current data which conflicts with what you have posted. I have found info that is current that does claim the 30-378 is a little faster by maybe 75-100fps. It looks likely they go head to head up till you put a 200 gr or bigger in the casing. That is when the 30-378 starts to leave the rum behind. I have no need to shoot anything bigger than a 180 so that is why I own 300 rums and not your gun. I agree with you on the 200gr and up but below that the 30-378 is just wasting powder with negligible gains over the 300rum. I hope you don't take this the wrong way. I think both cartridges are great in their own way.:)
 

Attachments

  • 300RemUltraMagWeb.pdf
    37.2 KB · Views: 211
  • 30-378WeatherbyMagWeb.pdf
    36.3 KB · Views: 133
Wingman, Great info.

Unfortunaltey they do not go head to head below 200 like you claim. Nor is the rum the top of the food chain in the 180 grain class.

According to the data you provided.
150's the weatherby has a 30 - 130 fps advantage
165's the weatherby has a 70 -110 fps advantage
180's the weatherby has a 70 - 140 fps advantage
200's the weatherby has a 90 -130 fps advantage

They are very similar but the speed advantage goes to the weatherby across the board no matter the bullet weight. I appreciate you confirming this.
 
The speed differences you are talking about between the 2 produce a 1-2 inch difference in drop at 500 yards. Not really an issue as far as I see it because I don't think I can shoot well enough to tell the difference. I have a RUM, my buddy shoots the weatherby. They both do the same thing if you put it where it needs to be.
 
I didn't read all the posts cause they started off onto another subject. The 300 win mag is a great gun for elk. I shot mine last year with that caliber. You don't really need that much gun for elk though. I killed elk with my 7mm-08 too. Same result and alot less recoil. Depending on how far you are wanting to shoot weighs on your decision also. Up to 450 yards my 7mm-08 is my go to gun. If your heart is set on a magnum caliber then I vote goes to the 300 win. mag.
 
Doug,
I completely agree 100%. I was simply wanting to correct the misstatements made. It's not by much but there is a slight difference. When wingman said "the rum is at the top of the food chain in 180 bullets by a lot" that is simply not true. I hate when I read false information posted on the internet with no data to back it up, that's all. In the end wingmans own data proved he was wrong.
 
Last edited:
I knew I was not crazy!!!! Please take a look at this barnes data off my reloading bench.
b1 - Copy.jpg

b2 - Copy.jpg
30-378 max load 3278 fps 180 gr
b3.jpg
300rum max load 3359 fps 180 gr
b4.jpg
300 rum max load 3134 fps 200gr

b5.jpg
30-378 max load 3137 fps 200 gr
b6.jpg
I could not get all the info on the rum in the close up
b7.jpg
My initial performance claims were made based off this data.
 
Last edited:
Back
Top