Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels and Ballistics


Reply

New 6.5 Idea

 
LinkBack Thread Tools Display Modes
  #29  
Old 01-30-2013, 04:04 PM
Silver Member
 
Join Date: Jan 2005
Posts: 337
Re: New 6.5 Idea

Montana Rifleman, I think you will be able to get to 3050 fps with the 180s on the 7 Dakota improved. The 300 Dakota improved, necked to 7mm will get you to 3200+ but the case life will be a bit short. The guys that I did that version for, backed their loads of to about 3180 and the primer pockets have held up since then. The 7mm RHB does 3240 with the 180s but shoots best at 3150. Best accuracy is with 86 to 87 grs. H 50 BMG and the 180 Berger jammed .010. The 200 Wildcats ran at 3020 but my gun didn't like them? I have 250 left if anybody wants them?

The 7mmRHB bbl is 28" long and the gun weighs 9lbs total. The base dimensions stay the same with .010 taper removed at the shoulder and tight neck . ( .0025" total clearance.)

Good luck with your projects ---- 7mmRHB
Reply With Quote
  #30  
Old 01-30-2013, 07:53 PM
Platinum Member
 
Join Date: Dec 2008
Location: Northern Id.
Posts: 3,357
Re: New 6.5 Idea

Keep on keepin' on guys! You have a sweet looking case there and having fun is all part of the program. Whether it makes the velocity you are looking for or not, it will be a great cartridge I'm sure......Rich
Reply With Quote
  #31  
Old 01-30-2013, 09:36 PM
Silver Member
 
Join Date: Dec 2011
Location: West Texas
Posts: 150
Re: New 6.5 Idea

looks very interesting good luck keep us posted.
Reply With Quote
  #32  
Old 01-30-2013, 11:46 PM
Platinum Member
 
Join Date: May 2008
Location: South of Canada and North of Wyoming
Posts: 5,954
Re: New 6.5 Idea

Quote:
Quote:
Originally Posted by 7mmRHB View Post
Montana Rifleman, I think you will be able to get to 3050 fps with the 180s on the 7 Dakota improved. The 300 Dakota improved, necked to 7mm will get you to 3200+ but the case life will be a bit short. The guys that I did that version for, backed their loads of to about 3180 and the primer pockets have held up since then. The 7mm RHB does 3240 with the 180s but shoots best at 3150. Best accuracy is with 86 to 87 grs. H 50 BMG and the 180 Berger jammed .010. The 200 Wildcats ran at 3020 but my gun didn't like them? I have 250 left if anybody wants them?

The 7mmRHB bbl is 28" long and the gun weighs 9lbs total. The base dimensions stay the same with .010 taper removed at the shoulder and tight neck . ( .0025" total clearance.)

Good luck with your projects ---- 7mmRHB
Thanks for the info, much appreciated.
__________________
- Mark

You will never know how much it has cost my generation to preserve your freedom. I hope you make good use of it.
~ John Quincy Adams
Reply With Quote
  #33  
Old 01-31-2013, 11:16 AM
Official LRH Sponsor
 
Join Date: Dec 2006
Location: Utah
Posts: 125
Re: New 6.5 Idea

Finally took a picture of the sectioned out brass to show a comparison of 6.5-284 when the bullet is seated to fit a standard Remington magazine box. Granted alot of 6.5-284 are in long actions or shot as single shots but this kind of shows where the thought started.
The picture is with my cell phone and is not very good quality but I think it shows the bullet base takes up alot of space in the 6.5-284, so a simple look would be by staighting the walls the short case it holds almost the same amount powder but will run at different burn rate and the case will be 90%+ full compaired to say 75%?? on the 284 case, making the short case more efficient. (we hope).
The stock is all painted and I think the only thing left is making the full lenth sizing dies and we are ready to move forward. I'm going to chamber a take off barrel for fire forming, those Proof Research barrels cost to much to fire form with.

Thanks again for following our project, it kind of spurs me along to get it done when I,m writing about the progress.
Attached Thumbnails - Click to View Larger
New 6.5 Idea-photo.jpg  
__________________
Steve

Elk Meadow Performance
www.elkmeadowperformance.com
Reply With Quote
  #34  
Old 01-31-2013, 12:26 PM
Silver Member
 
Join Date: Jan 2005
Posts: 337
Re: New 6.5 Idea

Steve got the last of the little parts that needed to be coated last night so it's time to get this sucker put together.!! We'll get some pics to add to this thread and then fire form a bit of brass while doing the break-in this weekend. If Steve gets the sizing die done we'll run a velocity test with a couple of powders we think will be the correct burn rate and report back, good news or bad!

Thanks to all of you that have taken some interest in this little project. ( even the skeptics ) ----- 7mmRHB
Reply With Quote
  #35  
Old 01-31-2013, 01:13 PM
Platinum Member
 
Join Date: Dec 2008
Location: Northern Id.
Posts: 3,357
Re: New 6.5 Idea

Lookin' good guys! The 6.5 Rem mag had the same problem in factory rifles and never performed up to par for the capacity so your idea is sound. I am still quite skeptical of 3075' in a 26" barrel, but we'll see. Good luck and keep the data coming.......Rich
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Current Poll
Do you archery hunt for elk?
YES - 32.03%
74 Votes
NO - 51.08%
118 Votes
Not yet, but I plan to. - 16.88%
39 Votes
Total Votes: 231
You may not vote on this poll.

All times are GMT -5. The time now is 11:35 PM.


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