300 rum or 338 rum
- Thread starter Scot
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MT.PERCHMAN
Active member
I'm a 3 Gun 300 ultramag family!
No custom builds just off the shelf rifles.
You can spends lots on a custom but I recommend a 300 rum sendero .
Just love mine shooting steel at 1400 yrds
MT.PERCHMAN
No custom builds just off the shelf rifles.
You can spends lots on a custom but I recommend a 300 rum sendero .
Just love mine shooting steel at 1400 yrds
MT.PERCHMAN
BackCountryMulies
Member
Might as well just go all out and build you a 30-378 WBY :hump:
The .284 will out perform those 2 canons past 1k
but with all BS set aside build a 338 Edge and have the best of both of them then we can talk about out performing my .284
The .284 will out perform those 2 canons past 1k
but with all BS set aside build a 338 Edge and have the best of both of them then we can talk about out performing my .284
A .30-378 is "all out" in a .30? And a ".284" out performs the "cannons"? Elaborate. mtmuleyMight as well just go all out and build you a 30-378 WBY :hump:
The .284 will out perform those 2 canons past 1k
but with all BS set aside build a 338 Edge and have the best of both of them then we can talk about out performing my .284
putm2sleep
New member
This big gun talk is cool
Don't own the rum - I might look at that Gunwerks
Weapon pictured there!
Wow backcountry , great bull and great shot!
Don't own the rum - I might look at that Gunwerks
Weapon pictured there!
Wow backcountry , great bull and great shot!
BackCountryMulies
Member
Unless hes planning on building a Warbird, a 30-378 will smoke the 300 RUM on FPS after all that seems to be what you guys that insist on shooting these canons are all about.
Lets elaborate on the subject of my .284 out performing the canons. First I will run it with relatively close bullets 190 VLD VS 180 VLD that 30-378 has me beat by 250 fps by 1400 theres 14 inches between our points of impact. The 300 rum has me beat by 140 fps but at 1000 yards I have 2 inches less drop. not to mention the amount of powder or lack of Im using. Please note how awesome them fast bullets do at longer distances they fall flat on there face.
30-378 190 VLD @ 3300 fps
30-378 165 TSX @ 3475 fps
300 RUM 190 VLD @ 3190 fps
300 RUM 165 TSX @ 3350 fps
7mm LRM 180 VLD @ 3050 fps
800 yards / 10 mph cross wind
30-378 WBY - 102 inches of drop and 29 inches of wind
165 gr- 108 inches of drop and 42 inches of wind
300 RUM - 110 inches of drop and 31 inches of wind
165 gr- 119 inches of drop and 46 inches of wind
7mm LRM- 111 inches of drop and 25 inches of wind
1000 yards/ 10 mph cross wind
30-378 WBY- 187 inches of drop and 48 inches of wind
165 gr- 208 inches of drop and 72 inches of wind
300 RUM - 202 inches of drop and 50 inches of wind
165 gr- 229 inches of drop and 77 inches of wind
7mm LRM- 200 inches of drop and 41 inches of wind
1200 yards / 10 mph cross wind
30-378 WBY- 308 inches of drop and 73 inches of wind
165 gr- 360 inches of drop and 113 inches of wind
300 RUM - 333 inches of wind and 77 inches of wind
165 gr- 398 inches of drop and 121 inches of wind
7mm LRM- 324 inches of wind and 64 inches of wind
1400 yards/ 10mph cross wind
30-378 WBY- 475 inches of drop and 105 inches of wind
165 gr- 588 inches of drop and 166 inches of wind
300 RUM - 514 inches of drop and 111 inches of wind
165 gr- 653 inches of drop and 179 inches of wind
7mm LRM- 489 inches of drop and 89 inches of wind
Meanwhile Im over here- Like hows the wind and your face feeling!
Conclusion- My .284 Just smoked your big canon with that last low in the wind
and dont even think about killing an elk past 1100 yards with the 165 GR that was hauling ass at the muzzle because you are now right at 800 ft-lbs of energy
belly-deep
Active member
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- 3,459
7mm LRM? What is that?
BackCountryMulies
Member
Gunwerks Long Range Magnum. parent cartridge is a 375 Ruger
sbhooper
Well-known member
Unless hes planning on building a Warbird, a 30-378 will smoke the 300 RUM on FPS after all that seems to be what you guys that insist on shooting these canons are all about.
Lets elaborate on the subject of my .284 out performing the canons. First I will run it with relatively close bullets 190 VLD VS 180 VLD that 30-378 has me beat by 250 fps by 1400 theres 14 inches between our points of impact. The 300 rum has me beat by 140 fps but at 1000 yards I have 2 inches less drop. not to mention the amount of powder or lack of Im using. Please note how awesome them fast bullets do at longer distances they fall flat on there face.
30-378 190 VLD @ 3300 fps
30-378 165 TSX @ 3475 fps
300 RUM 190 VLD @ 3190 fps
300 RUM 165 TSX @ 3350 fps
7mm LRM 180 VLD @ 3050 fps
800 yards / 10 mph cross wind
30-378 WBY - 102 inches of drop and 29 inches of wind
165 gr- 108 inches of drop and 42 inches of wind
300 RUM - 110 inches of drop and 31 inches of wind
165 gr- 119 inches of drop and 46 inches of wind
7mm LRM- 111 inches of drop and 25 inches of wind
1000 yards/ 10 mph cross wind
30-378 WBY- 187 inches of drop and 48 inches of wind
165 gr- 208 inches of drop and 72 inches of wind
300 RUM - 202 inches of drop and 50 inches of wind
165 gr- 229 inches of drop and 77 inches of wind
7mm LRM- 200 inches of drop and 41 inches of wind
1200 yards / 10 mph cross wind
30-378 WBY- 308 inches of drop and 73 inches of wind
165 gr- 360 inches of drop and 113 inches of wind
300 RUM - 333 inches of wind and 77 inches of wind
165 gr- 398 inches of drop and 121 inches of wind
7mm LRM- 324 inches of wind and 64 inches of wind
1400 yards/ 10mph cross wind
30-378 WBY- 475 inches of drop and 105 inches of wind
165 gr- 588 inches of drop and 166 inches of wind
300 RUM - 514 inches of drop and 111 inches of wind
165 gr- 653 inches of drop and 179 inches of wind
7mm LRM- 489 inches of drop and 89 inches of wind
Meanwhile Im over here- Like hows the wind and your face feeling!
Conclusion- My .284 Just smoked your big canon with that last low in the wind
Well stated. A lot of people just don't get it. I, personally, am not a fan of the long-range shooting at game, but if you do it, at least understand what all the science is behind it.
Those wind numbers are what really gets the point across. The same happens if you run the .260 against the .308. .260 wins the long race.
Backcountry, your RUM velocities are low. In barrels out to 26 inches or so, the WBY and RUM are virtually identical. And using heavier bullets helps as I'm sure you know. I have the software and can plug my own numbers. Also, in the .30 velocity race, I have some buds shooting .30-.338 Lapua IMP that would get your attention. In every RUM thread, or big .30 thread for that matter, sombody has to refer to "cannons" or MY ( insert cartridge) is better blah, less powder, blah, recoil, and blah blah blah. The guy wants a RUM. Why the problem? Great cartridges. Besides, it's just a few more clicks. After all the LR shooting at steel I've been doing, I've also come to the realization shooting critters at extreme range is a bad idea. Not bashing, couldn't care less if you do it. But, you don't have to have a ".284" to get it done either. mtmuley
BackCountryMulies
Member
I didnt spend hours researching the exact muzzle velocities of your certain build a quick search on pretty much any ammo manufacturing website will give you a pretty close MV. In this case I just went off Gunwerks website for the ammo specs on the 2- .30's with 190s I could have ran the LRM off there MV @ 3100 but I didnt mine runs 3050. Sure he can run with a Lapua as well as he could run a 300 Tejas, 338 Edge+P or 375 CheyTac I was just pointing out the .30 is not all its cracked up to be. and the Same things can be accomplished with a much smaller round. The guy wants to build a RUM build a rum but he should be fully aware of all that goes into long range shooting especially @ 1300 yards Its not just simply build a powerhouse super fast 30, hold over and let it rip. That is the exact example of the individual that gives long range hunting a bad name. I used to talk distance on hunts all the time now I avoid it like the plague if its out past 500 in general conversations. If we are talking long range hunting hell yea I have tipped some critters over at some insane distances with one shot kills and most of those have been with a .284 I admit I was into the big guns at one point and have had a 338 RUM and edge but I love to shoot and those big boys are not enjoyable to shoot. To be a proficient long range hunter and want some respect you better be sending more than a few rounds down range each season and by few I mean hundreds!
MinnesotaHunter
Well-known member
Most concerning part of this discussion.
BackCountryMulies
Member
Exactly.. and to be honest I bet most guys don't shoot there hunting rifles half that much but will be the first one to bash me for making a clean one shot kill at 1000+....
I usually dont on bucks and bulls but when crunch time comes and I havent tagged out and theres a big bull on the opposite ridge on the last day or two Im doing a retrieval hike. I like to pursue, I like the hunt. Honestly im an archery hunter I havent killed but a few bulls with a rifle the rest been with the hoyt. When it comes to filling my cow tags and doe tags I cant help it I dont shoot as much as do to not go to the long range grocery store.
Especially considering the 1200yd aspirations....
To the OP, I'd probably lean towards something smaller than either of your choices for game to 500yds. But, of the two you narrowed it down to, I'd probably go with the 300.
shrapnel
Well-known member
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- Aug 27, 2015
- Messages
- 2,633
It must be something special, a guy offered me one on a trade for my 4 wheeler...
BackCountryMulies
Member
300 RUM necked up to a .338. It has more powder capacity and has similar Ballistics to a 338 Lapua. The Edge can be built off a standard Magnum action. The Lapua can too but you will run into feeding issues and some argue its unsafe to build a Lapua on a Magnum action.
The Edge & Lapua are going to be more expensive to shoot than a RUM. Defensive Edge builds a bad ass 338 Edge+P that will shoot a 300 gr bullet around 3000 FPS I think you can accomplish the same with a 338 Lapua Imp too but I have not spent much time researching the Imp. The Lapua's just dont appeal to me. The picture below is one of the reason I got away from shooting these big boys but if you you want big holes and and big recoil these guns are right up your ally. This goat was 650 yards with a 300 gr Berger. there was meat and bone 30 yards behind him in the sage brush right after this goat was killed the gun was sold and a 7 was built. there is no need for this much destruction on a critter in my opinion and this is why I have so much hate towards them in the hunting world. I would consider Building another Edge to shoot steel with it is allot of fun launching a 300 gr bullet down range and hitting steel at a mile
The Edge & Lapua are going to be more expensive to shoot than a RUM. Defensive Edge builds a bad ass 338 Edge+P that will shoot a 300 gr bullet around 3000 FPS I think you can accomplish the same with a 338 Lapua Imp too but I have not spent much time researching the Imp. The Lapua's just dont appeal to me. The picture below is one of the reason I got away from shooting these big boys but if you you want big holes and and big recoil these guns are right up your ally. This goat was 650 yards with a 300 gr Berger. there was meat and bone 30 yards behind him in the sage brush right after this goat was killed the gun was sold and a 7 was built. there is no need for this much destruction on a critter in my opinion and this is why I have so much hate towards them in the hunting world. I would consider Building another Edge to shoot steel with it is allot of fun launching a 300 gr bullet down range and hitting steel at a mile
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belly-deep
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- Messages
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I've seen 7mm's do that.
