300 Rum or 300 Wby

I'd go with the 300 WBY, just for the quality brass (Winchester and Norma). 3350 with a 165gr TTSX is good enough for me. Too each their own in this arena. Personally I think the 300 WM or WSM is the place to be with the 30 cals.
Have fun!
 
Chuck Hawkes lists the balistics as follows:

Cartridge (Wb + type) MV (fps) V @ 200 yds ME (ft lb) E @ 200 yds
.300 Wby. Mag. (180 Sp) 3240 2826 4195 3193
.300 Ultra Mag. (180 Sp) 3250 2834 4221 3201

He also list trajectory as:

Cartridge (Wb@MV) Bullet BC 100 yds. 200 yds. MRT@yds. MPBR (yds.)
.300 Wby. Mag. (180 Sp at 3250) .483 +2.4" +2.6" 3"@155 320
.300 Ultra Mag (180 Sp at 3250) .483 +2.4" +2.6" 3"@155 320

I never realized how close they were.

The reason for the WBY being so close to the RUM is simply because the WBY loads are loaded much hotter compared to the much milder Remington loads.If you compare handloads,with each cartridge loaded to it's potential,the RUM offers an additional 100fps to 125fps.
 
The reason for the WBY being so close to the RUM is simply because the WBY loads are loaded much hotter compared to the much milder Remington loads.If you compare handloads,with each cartridge loaded to it's potential,the RUM offers an additional 100fps to 125fps.

Only if the barrel is long enough....

it seems the majority do not even consider that...
 
Only if the barrel is long enough....

it seems the majority do not even consider that...


What happens when they are both handloaded to thier potential, and fired from a 26" barrel? Either way you have to compare them from the same length barrel.

For a hunting rifle a 300wsm or 300wm is plenty (I have both, and a RUM). For a 12 pound long range tool pushing 210gr VLD or 208Amax's from a long heavy barrel I would go RUM. But for a everyday hunting rifle I would go WSM, and if I need more I would go up in bore size.
 
The barrel length would be the deciding factor for me...

if it is 24 inches make it a 300 Win Mag...
if it is 26 inches make it a 300 Win Mag...

If it is longer, cut it off and make a 300 Win Mag.... :)

Dennis, you are waaay too practical..but I like your style...:D
it takes a whole lot of powder, recoil and noise to significantly beat a 300 Win Mag out to where most of us shoot....me anyways....:).but I keep thinking of a 7RUM.....why....:rolleyes:
 
Whats funny to me is 50 years ago these same conversations were going on but it was over the 30-06 and the 300 Weatherby.

I can just picture the ole timers squawking about how you don't need more than a 30-06 and that thar 300 Win Mag/300 Weatherby are just gimmicks... :D
 
I would choose based on the rifle, rather than the cartridge.

The fit, feel, and handling will matter more at long range than belt vs. beltless or 100 fps.

A rifle that fits you well will help you shoot more consistantly, which will result in better long range accuracy.

Many claim to have 3/4, 1/2, or even 1/4 inch rifles, but how many can do it when it counts, in the field?

It's great to have a laser trajectory, but if you can't harness the accuracy potential of the rifle, what's the point?
 
What happens when they are both handloaded to thier potential, and fired from a 26" barrel? Either way you have to compare them from the same length barrel.

All three of my rifles had 26" barrels.Both 300RUM rifles produced about 125fps more than my 300WBY with 180gr bullets.
 
I like the Weatherby... better fitting, better looking rifles

The topic of the thread was a comparison of two cartridges not two different rifles.The two cartridges can be chambered many different rifles,or they can be chambered in the same make and model,and look and fit the same.
 
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The topic of the thread was a comparison of two cartridges not two different rifles.The two cartridges can be chambered many different rifles,or they can be chambered in the same make and model,and look and fit the same.

For Factory rifles, the RUM is only available in the 700 last I looked (admittedly I don't look often, as I simply don't care about the RUM), but on the point of the Cartridge... real-world, the RUM doesn't have an advantage over the Weatherby with a 26" barrel, need to make it longer for the RUM to be worthwhile.
 
i think we should hold a 300 mag, long range shoot any factory rifle and any glass 400yds- 600yds- 900yds- any hand load everyone puts $50.00 in the pot and let the best man and rifle win I can assure you 125fps will make no difference what so ever. Oh by the way i will be shooting a rifle and cartridge that started the long range game way back when i believe it was a 6'' group at 1000yds.
 
Scanning through my 7th edition Hornady manual I see the 300Wby and 300RUM are within 100-200 fps maximum difference. The RUM burns more powder to get there making the Wby more efficient in my mind. I shoot and love my 300RUM but I wouldn't turn down a sweet deal on a 300Wby rifle.

One question came to mind while taking a good long look at the Hornady manual. If the 300Wby is already a pretty efficient round, why did Roy dream up the 30-378Wby? The 300RUM and 30-378Wby, for all intents and purposes are identical. Maybe the reason that all 3 of these "super 30's" are so close is the variety of powders we have now. Maybe when Roy come up with the 300Wby and the 30-378Wby the 30-378 was a real barn-burner given the powders of the day in comparison to the 300?

I've always loved the look of the Wby Mark V rifles better than the rest. My RUM days got going because of a great deal I couldn't pass up!
 
For Factory rifles, the RUM is only available in the 700 last I looked

The 300RUM can be chambered in many different rifles,the original post did not specify factory rifles,in fact it didn't mention rifles at all.But for the record,even Sako chambered the 300RUM in the model 75.And the 300WBY has been chambered in the 700.
 
Scanning through my 7th edition Hornady manual I see the 300Wby and 300RUM are within 100-200 fps maximum difference. The RUM burns more powder to get there making the Wby more efficient in my mind. I shoot and love my 300RUM but I wouldn't turn down a sweet deal on a 300Wby rifle.

One question came to mind while taking a good long look at the Hornady manual. If the 300Wby is already a pretty efficient round, why did Roy dream up the 30-378Wby? The 300RUM and 30-378Wby, for all intents and purposes are identical. Maybe the reason that all 3 of these "super 30's" are so close is the variety of powders we have now. Maybe when Roy come up with the 300Wby and the 30-378Wby the 30-378 was a real barn-burner given the powders of the day in comparison to the 300?

I've always loved the look of the Wby Mark V rifles better than the rest. My RUM days got going because of a great deal I couldn't pass up!

The 30-378 was developed at the request of the US Army, looking for a cartridge that would exceed 5000 fps for special purposes. With the correct powders it is as much faster then the RUM as the RUM is over the 300 Wby. FWIW - dan
 
When I was 16, I snaffled on to my dad's 300 win mag. I loved the take down power. My first rifle that I bought on my own was a 300 wby. Even more take down than the win mag... bordering on overkill. I can only imagine what the RUM would be like. Once you get much more than the Weatherby, you are into the realm of overpowered, in my opinion. That being said, there are people who think any 300 is overpowered.

My suggestion is to get whichever rifle you feel comfortable with chambered in either or. Personally, I would stick with the Weatherby.
 
The 30-378 was developed at the request of the US Army, looking for a cartridge that would exceed 5000 fps for special purposes. With the correct powders it is as much faster then the RUM as the RUM is over the 300 Wby. FWIW - dan

Thanks guys for all the the good info. Dan is absolutly correct the 30-378 was developed for the US military for long range and armour penitration studys.
 
When I was 16, I snaffled on to my dad's 300 win mag. I loved the take down power. My first rifle that I bought on my own was a 300 wby. Even more take down than the win mag... bordering on overkill. I can only imagine what the RUM would be like. Once you get much more than the Weatherby, you are into the realm of overpowered, in my opinion. That being said, there are people who think any 300 is overpowered.

My suggestion is to get whichever rifle you feel comfortable with chambered in either or. Personally, I would stick with the Weatherby.

No matter what anyone tries to tell you speed does kill...

What I found about going to the bigger case cartridges was not really that I could increase the velocity but I could go to a heavier bullet at appr the same velocity as a lighter bullet in a smaller case.

I loaded 180gr bullets in my 308NM @ 3060 average velocity I now load 200 grain bullets in my 300RUM to 3200fps its not that I am going faster I am sending a bigger higher BC bullet down range which does give me better trajectories is it much better than my 308NM with lesser BC/lighter bullets maybe maybe not.

Will an animal notice the difference between a 300 W or a 300RUM or any of the 300 mags absolutely not but I like having the option of having the choice.
 
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