Need help on caliber

[Ragin_cajun]

I know similar post have been done but I have a receiver I'm getting ready to build off of. It's a 7mm rum and I'm trying to decide on what caliber to use. I will be shooting mostly at 1kyds but want to be able to perform at 2kyds when I have the chances. I'm trying to decide either 300 wm, 300rum, or stick with 7mm rum. It's just for banging steel.
Which of those calibers performs best @ 2000 yrds

 

[Ragin_cajun]

Ok let me simplify the question, of the three calibers 7mm rum, 300wm, and 300 rum which will perform better at 2000yards

 

[MontanaMarine]

The 300 RUM loaded with 230gr Berger, and a 34" barrel would get there fairly well, and you'd have enough barrel for a setback or two as the throat goes.

 

[Ragin_cajun]

What about with a 24 or 26 inch barrel? I'm not looking to go longer than that. Will a 300 rum perform at 2kyrds with a 26" barrel?

 

[Alpine 338]

Turn that 300 RUM into a 338 Edge, and you'll have a real performer at 2k.

 

[MontanaMarine]

I suppose it depends on your definition of "perform" .

If you are down near sea level, 2000 gets harder to do. If you are up around 5000' or more elevation, it gets a little easier.

With a 26" bbl and some elevation, you should be able to get to 2K yds supersonic with the right bullets, in 7mm or .30 cal.

If you want a serious 2K rig, it will be in a different league than a 1000 yard play toy for steel, rocks, etc.

Go to JBM, enter your bullet and atmo combos you would shoot, and see how things look. That's a good starting point to get your head in the right direction.

Between 7mm or 30 cal, there are some trade-offs. Bullet weight, MV, BC, are all variables.

Don't forget the 7 WSM. Twist it for the 180 VLDs, and it does good things way out there. your long action would give great latitude in cartridge OAL, and throating for the longer bullets.

 

[barnesuser28]

Turn that 300 RUM into a 338 Edge, and you'll have a real performer at 2k.

+1, throw a 300 grain berger in her and turn some rocks into pebbles.

 

[MontanaMarine]

338 Edge....Now you're talkin' serious 2K medicine.

 

[338edgeguy]

I like my edge. 28 inch brux barrel 1-10 twist it really likes the 300 SMK.

 

[VKC]

If you are shooting within 1500 yards most of the time, and 2k rarely, go with a 7mm mag of your choice (WSM, saum, rem mag, etc).

If you are honestly shooting mostly 1500-2000yds then go with the 300 Norma mag with Berger 230gr hybrids. Next step up is a 338lm.

 

[texote]

338 edge with a 30" barrel will get you where you wanna go!

 

[Scotty22]

+ 1 for the 300 Norma mag it's on my to build list.

 

[elkregulator]

Ok let me simplify the question, of the three calibers 7mm rum, 300wm, and 300 rum which will perform better at 2000yards

Out of these.... go with the 300wm. Easy to find good brass & easy on the barrel. Chambered with the latest bullets you will have a gun that is a lot of fun to shoot for a few seasons.

 

[Ragin_cajun]

Thanks for all the help guys. Forgive me if this next question sounds stupid but can I build a 30-338 LM of a standard rem 700 long action receiver. If I can, could it be a repeater or only single shot? Could I modify a box mag or better yet use an AI chassis with 338 box mags?

 

[Goin'Hot]

If you'll be shooting at 2k, there is no need for a repeater.

 

[Ragin_cajun]

Can anyone recommend a smith in the states that can build a 30-338 lapua and doesn't have a crazy long wait? If so post or pm me

 

[barnesuser28]

I personally wouldnt use a rem 700 on a case with a 338 Lapua bolt face, it is marginal. Build a 300 rum and get some bertram 338 edge brass from Shawn Carlock at Defensive Edge (neck it down) and you will have just as good performance, just as good brass, and work very well on the 700 action.