Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Techniques For Reloading


Reply

375 RUM and the 260 Accubond...

 
LinkBack Thread Tools Display Modes
  #15  
Old 11-27-2013, 03:12 AM
Silver Member
 
Join Date: Jul 2012
Location: Washington State
Posts: 448
Re: 375 RUM and the 260 Accubond...

Doublezranch

Mrultramag pointed out the Real Guns website and I too go there for loads. Real Guns is where I found the 375 Ruger and made a decision to acquire one. His loads are not as extensive as some but they are reasonable selections of components. He uses some bullets like North Fork that you don't see very much.

After my last post I dug up the latest Nosler manual and see they recommend 96grs of IMR 4350 as a top load with their 260gr AB for the 375 RUM. Interpolating that data point, change my recommended top load for Superformance to 100grs.

Lefty7mmstw points out that Superformance can fall off the charts real quick and that is very true. It is not for every combination but when it works it really works well.

Smokeless Powder was real alchemy to me when I started reloading in 1971 so I have always searched out every piece of info and data I can find on the subject. It really is rocket science - solid fuel rockets though. Handloader Magazine covers one powder every issue, sometimes two and that is a great source for knowledge. If you aren't intimidated by the basic science it all fits together in the ol' brain. Lots of info out there today, thank God!
Reply With Quote
  #16  
Old 11-27-2013, 12:50 PM
Silver Member
 
Join Date: Mar 2011
Location: North Dakota
Posts: 416
Re: 375 RUM and the 260 Accubond...

Like all of you, I have a reloading room full of powder that I thought would work great and then fell off the map. I will try Superformance and see how well it works. The best quality of reloading is time. If something doesn't work, just wait, there are many others trying new things with powder/bullet combos that might use up that powder that didn't work previously.

I'm going to try a couple of things. My bullet choices are 260 Accubond and the 320 CEB's. I am going to tinker with the accubonds cause they are much cheaper than CEB's. However, once I get my reciepe dead to rights with the 260...I will then have a much better idea of the animal I'm dealing with. My ultimate goal for this RUM is ELR. But first, since the factory barrel is new, I'm going to have fun hunting with it. Then transfermation begins. Thanks to all who have weighed in with information. I will use all of it in some way, type or form.

Jayson
Reply With Quote
  #17  
Old 11-27-2013, 08:58 PM
Silver Member
 
Join Date: Jul 2012
Location: Washington State
Posts: 448
Re: 375 RUM and the 260 Accubond...

Jayson

The only down side to 3/8" bore rifles for ELR is a drought of high BC bullets. 7mm, 308, and 338cal have a great selection of very high (>0.600 BC) bullets to choose from. Also, most of the 375 cal bullets are of a very stout construction, not the best when velocity drops to <1800fps. The bullets for 375 will hammer a big ol' bear and go clean through his tough body but that makes them too tough for way out there. I see the limit as about 1000yrds for the bullets we have and that's not close range shooting by any stretch but most ELR is defined as >1200yds. Nosler just came out with LR AccuBonds the other calibers but apparently not enough call for us 3/8" bore fans.

Nolser lists the lower expansion limit of the AB LR at 1300fps as opposed to the 1800fps of the 375/260gr AB. The 7mm 168gr AB LR has a G1 BC=0.652 and G7 BC=0.352. the 308 AB LR has a G1 BC=0.73 and a G7 BC= 0.366.

This leads me to believe that for ELR (not LR<1000yds) the UltraMags in either 7mm or 30cal are a better choice. I am looking at the 7mm UltraMag as my next LR rig for this very reason.

But even my lowly 375 Ruger with a long barrel delivers 2000ftlbs at 630yds and 1800fps at 670yds. Anything up close and personal is going to see the destruction of 5200fllbs of Nosler's finest.

I ain't giving that up ever!!!
Reply With Quote
  #18  
Old 11-27-2013, 11:52 PM
Silver Member
 
Join Date: Mar 2011
Location: North Dakota
Posts: 416
Re: 375 RUM and the 260 Accubond...

The great news is that I have a 7 ultra, full custom 300 ultra, semi custom 338 ultra to go along with my 375 ultra respectively. All of them do a single job for me whether it's deer, bear, goat...etc. I hold my ultras very close to my heart as I've shot targets being animals, paper, or steel at or close to 1k. I hear what your saying when it comes to really big bore rifles. They were not ment for shooting long distance. However, if there's a way....I'm going to find it with my 375 rum!!
Reply With Quote
  #19  
Old 11-28-2013, 05:15 PM
Platinum Member
 
Join Date: May 2012
Location: N.D.
Posts: 2,802
Re: 375 RUM and the 260 Accubond...

Quote:
Originally Posted by Doublezranch View Post
The great news is that I have a 7 ultra, full custom 300 ultra, semi custom 338 ultra to go along with my 375 ultra respectively. All of them do a single job for me whether it's deer, bear, goat...etc. I hold my ultras very close to my heart as I've shot targets being animals, paper, or steel at or close to 1k. I hear what your saying when it comes to really big bore rifles. They were not ment for shooting long distance. However, if there's a way....I'm going to find it with my 375 rum!!
Dang, that's a lot of rum. I have a 7rum(just picked her up- still no top end on her) and a 300rum. I'm still using the 338win and 375 h@h, but they do me well. I think the 250 grain hornady may have some merit for stretching your 375 rum's legs a bit.
Hornady Manufacturing Company :: Bullets :: Rifle :: Choose by Caliber :: .375 375 CAL :: 375 Cal .375 250 gr GMX®

It's only a .430 bc, but you ought to be able to launch well over 3000 fps with your rum.
Reply With Quote
  #20  
Old 11-30-2013, 02:00 PM
Bronze Member
 
Join Date: Jun 2009
Posts: 76
Re: 375 RUM and the 260 Accubond...

I load with RL17 powder/260gr Accubonds for my 21" barreled 375RUM = 3020fps.

Super accurate combo.
Reply With Quote
  #21  
Old 11-30-2013, 02:58 PM
Silver Member
 
Join Date: Mar 2011
Location: North Dakota
Posts: 416
Re: 375 RUM and the 260 Accubond...

21 inch barrel? Goodness!!! Did you have to put 2 muzzle breaks on her to calm the mules kick?

Thanks Lefty, 250 is another great choice. I'm going to give the 260 accubonds and the 320 CEB's a whirl. It's going to be a "blast" for sure!!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Current Poll
Are you on Facebook?
Yes - 46.62%
1,091 Vote
No - 19.19%
449 Votes
No, but I may join - 1.75%
41 Votes
No way, are you kidding? - 36.15%
846 Votes
Total Votes: 2,340
You may not vote on this poll.

All times are GMT -5. The time now is 08:56 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC