300 RUM vs. 7mm RUM in Sendero

[J E Custom]

For a couple years now I have been a remington guy for my hunting rifles. Currently I'm shooting a Remington 700 SPS 7mm Rem Magnum, shooting Hornady 139gr BTSP InterLock being pushed by 67.5 grains of powder.
I'm good shooting right now up to 400 yards, and going to keep working on perfecting those shots 0-400 with that rifle.
I'm looking at buying a rifle to shoot a little bit further with, up to probably 700 yards or so. Right now the Sendero is my choice of guns, I just don't know which caliber would be best. I'm hunting whitetail currently, but want to take antelope, elk, mule deer and hopefully moose and bighorn at some point in my life.
I'm looking at the 300 RUM and the 7mm RUM and wanting to know the differences, pros and cons, and suggestions on which performs better for hunting situations like I've described. I'm new to the forums, just joined and figured this is my best resource for information on the two.
Thanks.

If you are going to re barrel there are lots of choices.

The 7 mm Rem Mag Is capable of 700 yard shots with 160+ bullets.
The 7 STW is a step up from the 7rm.
The 7 RUM is even more than the STW (12 to 15%)
The 300 RUM is definitely capable and will do anything that you want it to @ 700 yards.
And for Elk @ 700+ yards I would recommend the 338s.

I know that doesent help much but barrel life should not be a tiebreaker for a hunting rifle.

The order is in Energy produced it is also the order for more recoil.

J E CUSTOM

 

[roninflag]

you can't go wrong with a sendero.

 

[meatyrem]

I have both, the 7 and the 300. If I were to only have one and had to choose it would be the 300 RUM all day long, in a sendero of coarse. But If you want both, go with both cuz I wasn't able to decide. So I went with both if I had to get rid of the rest, I would keep my 300 RUM sendero!

 

[Good]

If you are going to re barrel there are lots of choices.

The 7 mm Rem Mag Is capable of 700 yard shots with 160+ bullets.
The 7 STW is a step up from the 7rm.
The 7 RUM is even more than the STW (12 to 15%)
The 300 RUM is definitely capable and will do anything that you want it to @ 700 yards.
And for Elk @ 700+ yards I would recommend the 338s.

I know that doesent help much but barrel life should not be a tiebreaker for a hunting rifle.

The order is in Energy produced it is also the order for more recoil.

J E CUSTOM

Agree. 338. A little more expensive to reload but worth it if you ever decide to hunt moose or whatever, and it will kill deer dead too.

 

[Long Time Long Ranger]

I vote the 300 RUM. The 7mm RUM is way to harsh on barrels for me. If they are discontinuing the 338 RUM then the 300 RUM is the one to have. I have made some very nice long shots with the 300 RUM. A couple 900-1000 yarders this year.

 

[4xforfun]

Stay with your 7mm rem mag, shed the 139 Hornadys, and load up some Berger 180 vld's. At 2950 fps the Berger has TWICE the energy of the 139 at say 3250 fps...at 1000 yards. DOUBLE......And 1/3 less wind drift.

H1000, RL-25 have both worked for me....and the RL 25 has pushed the 180 considerably north of 2950 with a 26 inch tube in my testing.

 

[nkotlowski]

Yes, the 7mm mag has no problem with a clean kill at 900, I have a custom savage 110, with aftermarket barrel, trigger assembly with a 5.5-24x50 nightforce scope that will shoot 1.5 inch groups at 1000 (out of a vice I'm not that good) but I will not shoot at one over 700. Whatever you choose no need to build more gun than u comfortable shooting with very little rest.

 

[Doublezranch]

I have all the RUMS's in the family. The 7, 300, 338, 375 respectivley. They all shine but on totally different spectrums. Although the 375 is probably the most effiecent round, the 7 is the most ineffiecent. The 7 I use for antelope. Super flat shooting, carries a good punch out to a distance, bullet choices top out at 180 and if your not careful you can burn a barrel up rather quickly. I use my 300 for Mullies and Whitetail. Again, flat shooting, tons of bullet options, heavy punch out to distance, lots of reloading data and many people shooting them. The 338 I use for everything. Even though the case capacity is a bit smaller than the 7, 300, the monsterous punch it carries out to distance it hard to match. I know the 338 RUM isn't on your radar, but it really is a very good all purpose round.

To answer your question....the 300 RUM. Expecially in a sendero. You will never regret that purchase. Once you burn the barrel out, then you can go to a 338 edge or RUM.

Good Luck my friend.

 

[MudRunner2005]

For a couple years now I have been a remington guy for my hunting rifles. Currently I'm shooting a Remington 700 SPS 7mm Rem Magnum, shooting Hornady 139gr BTSP InterLock being pushed by 67.5 grains of powder.
I'm good shooting right now up to 400 yards, and going to keep working on perfecting those shots 0-400 with that rifle.
I'm looking at buying a rifle to shoot a little bit further with, up to probably 700 yards or so. Right now the Sendero is my choice of guns, I just don't know which caliber would be best. I'm hunting whitetail currently, but want to take antelope, elk, mule deer and hopefully moose and bighorn at some point in my life.
I'm looking at the 300 RUM and the 7mm RUM and wanting to know the differences, pros and cons, and suggestions on which performs better for hunting situations like I've described. I'm new to the forums, just joined and figured this is my best resource for information on the two.
Thanks.

Why don't you just have it trued up, and put a nice stainless Bartlein 1:9 7mm Rem Varmint contour blank on it, and have it chambered to 7mm RemMag. Then load some Berger 168 or 180 VLD's? The 7mm RM is more than capable even out ot 1,000 yards on medium, and even large game.

One of our members here killed a monster moose @ 900+ yards with a 7mm RemMag.

 

[Lrt307]

I have a 7rem Mag 7stw and 300rum. I love the 7rem mag it shoots great and is running 180 bergers @ 2995 fps. I have killed 3 elk with it @ ranges from 510 to 902 and 988. It gets it done. I like me 300 rum the best it hasnt killed anything since I got it back from the smith but I have shot targets out to 1050 and it packs the mail compared to my 7 @ this distance. The 300 rum is shooting 185 bergers @ 3453 fps. My vote is for the 300 rum if I were to choose between the 7 and 300 rum. The STW is a barrel burner and works for a good jack handle when the truck needs the tire changed.

 

[MudRunner2005]

I have a 7rem Mag 7stw and 300rum. I love the 7rem mag it shoots great and is running 180 bergers @ 2995 fps. I have killed 3 elk with it @ ranges from 510 to 902 and 988. It gets it done. I like me 300 rum the best it hasnt killed anything since I got it back from the smith but I have shot targets out to 1050 and it packs the mail compared to my 7 @ this distance. The 300 rum is shooting 185 bergers @ 3453 fps. My vote is for the 300 rum if I were to choose between the 7 and 300 rum. The STW is a barrel burner and works for a good jack handle when the truck needs the tire changed.

Are you kidding me? The STW and 300 RUM get really similar barrel life... I have around 750 rounds down the tube of my 7STW, and it will still shoot 1-holers if I do my part... One of our members got 1,500 rounds out of an STW barrel that was still shooting around 1 MOA when he sold it...

 

[Lrt307]

Are you kidding me? The STW and 300 RUM get really similar barrel life... I have around 750 rounds down the tube of my 7STW, and it will still shoot 1-holers if I do my part... One of our members got 1,500 rounds out of an STW barrel that was still shooting around 1 MOA when he sold it...

I guess I was a little unclear. I dont see the reason to run a 7 stw @ the same or close to the same velocities as my 7 mag. For instance I can load my 7 up with 71.5 grains of retumbo and push a jlk 180 3074 fps. It shoots real good there. The stw takes 83.5 for similar results. Whats the point in burning more barrel life and powder over the 7?

I actually favor 69.5 h1000 in the 7 with either berger 180 or jlk 180 and keep it down between 2995-3010 fps. Real consistent load and I have over 1200 rds thru cpg gun. Broughton barrel. My .02€

 

[MudRunner2005]

I guess I was a little unclear. I dont see the reason to run a 7 stw @ the same or close to the same velocities as my 7 mag. For instance I can load my 7 up with 71.5 grains of retumbo and push a jlk 180 3074 fps. It shoots real good there. The stw takes 83.5 for similar results. Whats the point in burning more barrel life and powder over the 7?

I actually favor 69.5 h1000 in the 7 with either berger 180 or jlk 180 and keep it down between 2995-3010 fps. Real consistent load and I have over 1200 rds thru cpg gun. Broughton barrel. My .02€

I get similar velocities with my 7mm RemMags and my 7mm STW if I load them within 4-6 grains of powder...If I load the STW up hotter, I can get significantly higher velocities with the 180's. With my 7mm RemMag I push 180's around 2850 for brass conservation, and my STW around 3,000 both using about the same amount of powder. I could stretch the STW out more, but being that the gun has some value to it, I don't feel like risking blowing the barrel or burning it out.

If you're running 83.5gr of powder behind a 180 in an 7mm STW, then you're nuts. That'll blow it sky-high. You must only get 1 firing per case. That is a RUM sized load.

 

[Lefty7mmstw]

I get similar velocities with my 7mm RemMags and my 7mm STW if I load them within 4-6 grains of powder...If I load the STW up hotter, I can get significantly higher velocities with the 180's. With my 7mm RemMag I push 180's around 2850 for brass conservation, and my STW around 3,000 both using about the same amount of powder. I could stretch the STW out more, but being that the gun has some value to it, I don't feel like risking blowing the barrel or burning it out.

If you're running 83.5gr of powder behind a 180 in an 7mm STW, then you're nuts. That'll blow it sky-high. You must only get 1 firing per case. That is a RUM sized load.

Muddy, you won't get the vel's he's talking about in a 7rem without high pressures. I've had enough of them to know better. Strain gauges shut the 7rem guys up pretty well. You've seen some of the strain gauge graphs from my sendero 7stw; I could loaf it at 3400 fps with a 140; that'll blow brass in any 7rem I've ever seen. As to the powder charge (83.5) being hot in a stw, not if you are burning 50 bmg type powders, but that'll still be up there.