Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Hunting > Long Range Hunting & Shooting

Long Range Hunting & Shooting Nightforce Optics


Poll: Better off using a 300 RUM or 7mm 180 bergers at 3000 fps
Poll Options
Better off using a 300 RUM or 7mm 180 bergers at 3000 fps

Reply

300 RUM or 7mm with 180 bergers at 3000 fps

 
LinkBack Thread Tools Display Modes
  #113  
Old 07-30-2012, 10:04 AM
TMR TMR is offline
SPONSOR
 
Join Date: Mar 2006
Location: Elma, WA
Posts: 497
Re: 300 RUM or 7mm with 180 bergers at 3000 fps

My 7RM reamer is specially designed for the 180's. Its considerbly different than most guys reamers and especially factory chambers. I have built close to 70 of these with this reamer design and 26" barrels see right at 3000, 27" barrels will run in the 3020-40 range. The load is stout but not a max charge with this chambering. Norma brass is a little soft, so that is why Billy isn't quite seeing the full velocity. My personal 26" Rock barreled rifle runs 3020fps and has been verified out to 1500yds. The 7RM is a sleeper cartridge. With today's bullets and powders, its a completely different animal than it once was.
__________________
Travis Redell
R Bros Rifles
www.rbrosrifles.com
Reply With Quote
  #114  
Old 07-30-2012, 02:23 PM
Gold Member
 
Join Date: Sep 2009
Location: Washington
Posts: 650
Re: 300 RUM or 7mm with 180 bergers at 3000 fps

Im not sure of the weight somewhere around 10.5 lbs I think, I'll try and weigh it sometime. In reference to velocity I got this up to 3026 with 72.5 gr of retumbo but was noticing some flat primers but bolt lift was just fine. I was getting my best ES at 71.5 gr and 2962 fps (according to my chrono). I am using the softer norma brass vs the win brass. The batch of win brass I originally got was so bad I went to norma. After this batch of 100 norma go I may look at the winbrass again, maybe I just got a horrible batch.
Reply With Quote
  #115  
Old 07-30-2012, 02:35 PM
Gold Member
 
Join Date: Sep 2009
Location: Washington
Posts: 650
Re: 300 RUM or 7mm with 180 bergers at 3000 fps

Quote:
Originally Posted by TMR View Post
Looks like the rifle is behaving well.
This rifle is just shooting every load I try very well. I've stopped using group size to try and pick a load and am just using ES. If I do my part it would shoot any load under .5 MOA. I shot another group at .337 CTC the first 2 shots went almost through the same hole, I honestly couldnt hardley tell it was but one hole.
Reply With Quote
  #116  
Old 07-30-2012, 02:47 PM
Gold Member
 
Join Date: Sep 2009
Location: Washington
Posts: 650
Re: 300 RUM or 7mm with 180 bergers at 3000 fps

Quote:
Originally Posted by sendero72 View Post
How in the world are guys getting these kind of speeds with a 180 out of a 7 mag? I shoot a 162 amax with 69.5 gr of H1000 and getting only 2990 MV. My chrono says much faster, but my drop table at 600 yds says another story, which is the 2990. I'm shooting a 26 in Hart with a 9 twist.
I was skeptical at first as well but He assured me that I could accomplish these velocities. Travis hasn't dissapointed me at all. He was the perfect smith. I stopped by his shop 3 times or so and wasted hours of his time just talking. He let me handle some of his builds/personnal rifles and I spied him working on some customers builds, as I didnt want to disrupt him in the middle of his work just walking in and was waiting for him to hit a stopping point, and I have just been impressed with the whole expierence. I have gotten the velocities I was promised.
Reply With Quote
  #117  
Old 11-02-2012, 12:56 PM
Silver Member
 
Join Date: Nov 2008
Posts: 118
Re: 300 RUM or 7mm with 180 bergers at 3000 fps

have owned both of these and still have the 300. my question is will the either barrells still have a throat left when you become proficent at the ranges you state you will be shooting.
Reply With Quote
  #118  
Old 11-03-2012, 02:07 AM
Silver Member
 
Join Date: Apr 2010
Location: Boise , Idaho
Posts: 131
Re: 300 RUM or 7mm with 180 bergers at 3000 fps

Dang this thread just keeps going. I pulled my Sendero 7 Rum out for a back up this year.. took two shots at the 200y Bull, 1/2 inch to right and 3/4 inch apart at 2960fps. Nice to know it was still on and consistent should I need it.

85.5G Retumbo, 215m primers 2x fired Nosler brass.

About the velocity question, It might be a brass issue, the bullet grip and case change a little bit every time it is fired from the brass getting harder.
Reply With Quote
  #119  
Old 11-03-2012, 08:18 AM
Platinum Member
 
Join Date: Dec 2011
Location: Vandergrift PA
Posts: 1,200
Re: 300 RUM or 7mm with 180 bergers at 3000 fps

I have seen the 7SAUM with a 30" barrel and throated for the 180 bergers push the 180 grain bullet @ 3200 FPS with that kinda B.C. it's amazing, that would be my prefered set up for out to 1400 yards longer I am going to the 300 RUM with the 210's
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: 300 RUM or 7mm with 180 bergers at 3000 fps
Thread Thread Starter Forum Replies Last Post
WTT: 168gr Bergers for 180gr Bergers longrange.270 Reloading Equipment and Components 0 07-31-2009 09:29 PM
Ssg 3000 Fumedo Gun Photos 3 05-10-2008 11:30 AM
Rem 700 SA 250/3000 AI EddieHarren Guns For Sale 0 02-15-2008 12:49 PM
B&L 3000 toddconley Long Range Scopes and Other Optics 0 12-04-2006 08:59 AM
22-3000 help! 6.5 Bandit General Discussion 4 03-07-2004 09:32 PM

Current Poll
Do you archery hunt for elk?
YES - 34.32%
116 Votes
NO - 48.52%
164 Votes
Not yet, but I plan to. - 17.16%
58 Votes
Total Votes: 338
You may not vote on this poll.

All times are GMT -5. The time now is 01:56 PM.


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