turrning a 300 Rum into 30-378 wby whats needed

[Biggerhammer]

I like Benchmarks "Sendero" contour fluted. I've had rifles built with their lighter and heavier contours. The fluted Sendero was well balanced for weight and accuracy and of course a 30" barrel on my Edge.

[257wbymagkiller]

Got alot to think about i was hoping to do the drop box magazine on the edge build but i guess there isnt one out there that will work 

[mountainman]

Not a lot of difference side by side. And yes, the 338 Edge is the most efficient...
L-R.. 30/378 Wthrby, 300 RUM, 338/378 Wthrby, 338 Edge.
(Laz Warbird on end)

[257wbymagkiller]

Wow I guess there isnt it might just be worth it to sell the 700 PSS than and keep my new one, hahah the PSS only has 60 rounds threw it haha

[whacker1]

Wow I guess there isnt it might just be worth it to sell the 700 PSS than and keep my new one, hahah the PSS only has 60 rounds threw it haha

Your gains are to be had on the bullet selection of the 338 by going to the Edge getting into Long Heavy Balistically superior bullets vs. what is available in the 300.  300 RUM can push some big ones that are in the 225-250 grain range.  I don't know all the options, but the 338 gets into the 300 grain bullet range, which is where your gains are to be had for what most are pursuing.

If you were going to keep both 300 RUM, I would set one up to shoot light and fast.  168-180 grain and then set up the other to shoot heavy longer choices in the 225 range.

[jjhunter]

If I already had an ultra mag action, I'd go with an Edge. 

I just started a new build from scratch and the edge was at the top of my list.  If I would have had the appropriate action laying around, it would have been a no brainer.

[257wbymagkiller]

Wow I guess there isnt it might just be worth it to sell the 700 PSS than and keep my new one, hahah the PSS only has 60 rounds threw it haha

Your gains are to be had on the bullet selection of the 338 by going to the Edge getting into Long Heavy Balistically superior bullets vs. what is available in the 300.  300 RUM can push some big ones that are in the 225-250 grain range.  I don't know all the options, but the 338 gets into the 300 grain bullet range, which is where your gains are to be had for what most are pursuing.

If you were going to keep both 300 RUM, I would set one up to shoot light and fast.  168-180 grain and then set up the other to shoot heavy longer choices in the 225 range.

Yeah that could be an option i might go with or sell and build one boss Edge hmmmm

[BULLBLASTER]

The 215 and 230 bergers in the 300 rum are pretty impressive, but not as much so as a 300 in the 338. I'm not sure I'd trade my 300 rum with 215 grainers for anything tho. That combo has been magic for me

[257wbymagkiller]

The 215 and 230 bergers in the 300 rum are pretty impressive, but not as much so as a 300 in the 338. I'm not sure I'd trade my 300 rum with 215 grainers for anything tho. That combo has been magic for me

That is a great combo what to do what to do.......

[Jonathan_S]

Yeah as long as it fits in your rig, it's a great combo 

Keep us posted on your build man, this is making me want a 338 Edge build all the more 

[257wbymagkiller]

hahahah well im doing an edge with the one but i think i will sell the other platform, it will show up on here shortly 

[b23]

I still wouldn't rule out a 30-338 Lapua Improved or 338 Lapua Improved.  Both have a pretty decent size fps advantage over the 300 RUM or 300 RUM based Edge and 338 Lapua brass is much easier to find as well as last significantly longer.

[257wbymagkiller]

I still wouldn't rule out a 30-338 Lapua Improved or 338 Lapua Improved.  Both have a pretty decent size fps advantage over the 300 RUM or 300 RUM based Edge and 338 Lapua brass is much easier to find as well as last significantly longer.

True Lapua brass is some of the best out there, my norma brass i usse in the weatherbys is also good stuff to

[zike]

I see the local pawn shop has a Weatherby MXV 30-378 listed. I'm afraid to check it out, I don't think my old should would handle it.

[257wbymagkiller]

And what pawn shop is that???