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375 rum custom build options/ideas??

 
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  #8  
Old 09-11-2013, 04:23 PM
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Re: 375 rum custom build options/ideas??

Quote:
Originally Posted by 500mag_guy View Post
I'd probably have to have close to a 30" tube to get 3k then ya think ?

I would ask someone with exball.. at somepoint adding barrel will be a moot point
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  #9  
Old 09-11-2013, 04:37 PM
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Re: 375 rum custom build options/ideas??

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Originally Posted by Tikkamike View Post
I would ask someone with exball.. at somepoint adding barrel will be a moot point
Gotcha. That's why i asked how others would build it because I have no clue what the Optimal berrel length would be for that caliber.
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  #10  
Old 09-11-2013, 05:11 PM
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Re: 375 rum custom build options/ideas??

Maybe Kirby will jump in, but in the mean time I recall reading him to say that there is not a lot of gain in a longer barrel with 375 as it is not very overbore.

If you are dead set on the Rem 700 action, disregard the following.

If you are looking for a carryable ELR 375, I would go with a Lapua Imp version or Kirby's 375 Allen Express. Advantges....

Much better brass
More case capacity
Shorter COAL to allow long high BC bullets seated efficiently and able to fit in the magazine for a repeater.

And if going with the Lapua, I would go with a good custom action.
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  #11  
Old 09-11-2013, 05:29 PM
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Re: 375 rum custom build options/ideas??

Mark, to hear from a couple builders would be much appreciated!!

I think I'd really like to stick with my 700 action.

I really appreciate your replay and all your info.

Just would love to get them 350gr pills moving a little quicker
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My dear boy if 5 miles away they don't sit up in their beds and ask what the HELL was that, the gun is not big enough!

Riley: "Biggest fail of 2014 so far..."
http://www.longrangehunting.com/foru...72/index4.html
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  #12  
Old 09-11-2013, 05:49 PM
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Re: 375 rum custom build options/ideas??

The 700 action and the Remington brass available for the 375 will not come up short. The brass will need a little extra prep but in my experience the 375 rum is some of The better brass Remington made. The ultra mag case is an amazing building platform so don't be shy about using your current action
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Get a JOB! I already feed the bears, I dont need to feed you too!

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  #13  
Old 09-11-2013, 06:21 PM
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Re: 375 rum custom build options/ideas??

Mike, I am in no way trying to dis the 375 RUM, but in an attempt to be objective, my opinion is the Lapau case offers a lot more for reasons stated. More powder in a shorter case with superior brass. I've never worked with 375 brass but the 300 RUM brass looses it's pockets in about 5-6 firings at max pressures. Maybe I'm wrong, but I'm guessing the Lapau quality and strength exceeds the RUM's. More powder will mean more velocity and a shorter case means a shorter magazine friendly COAL. All plusses

Mag guy, You could build the Lapua on the 700 but with the bigger bolt face you would probably be pushing it to close to its limits. I'll let the smiths comment on that if they jump in. I know with my 300 RUM build I replaced everything on the 700 donor except the receiver itself. The 375 RUM is a good cartridge but the Lapua will get you farther down range.

As for projo's, you might consider these...

https://cuttingedgebullets.com/cgi-b...n&key=MTH_L350

They have a little higher BC than the SMK's and you will likely be able to get them down the bore quicker because of their bore riding design.

Good luck with your project!
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  #14  
Old 09-11-2013, 06:26 PM
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Re: 375 rum custom build options/ideas??

Mark,

We are talking about the 338 lapua mag correct?

If so I've already got one of them puppies all done up.
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