Long Range Hunting Online Magazine


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


Reply

Results of H50BMG in a .264 Win. Mag.

 
LinkBack Thread Tools Display Modes
  #1  
Old 01-04-2004, 02:58 PM
Silver Member
 
Join Date: Jan 2003
Location: NE Ohio
Posts: 112
Results of H50BMG in a .264 Win. Mag.

Submitted for those of you that may be of interest.

OK..here's the data....

140 grain SMK
RP neck sized brass
Federal 210M primers
Temp. - 35 degrees

65.0 gr. - 2950 fps
66.0 gr. - 3014 fps
67.0 gr. - 3030 fps
68.0 gr. - 3053 fps
69.0 gr. - 3048 fps
70.0 gr. - 3091 fps
71.0 gr. - 3147 fps
72.0 gr. - 3136 fps
73.0 gr. - 3169 fps
74.0 gr. - 3205 fps
75.0 gr. - 3218 fps
76.0 gr. - 3242 fps
77.0 gr. - 3269 fps compressed charge

I like how the powder gives low increases of velocity between 1 grain charges. That tells me that small deviations in powder charges will have little effect on velocity and should return a nice low standard deviation. Also, the case can be jam packed with the stuff and it won't blow your rifle up and still gives very good velocity. There are other powders that will drive a 140 grain pill faster, but accuracy kills far better than speed.

Overall, I feel that H50BMG is a very good powder in magnum cases and is very overlooked as a viable powder to use in this class of cartridges.

You may have noticed that at times greater charges returned lower velocities. It has been my experience that this does happen from time to time, most likely a result of case wear and preparation. My cases are not prepared to BR standards.
Reply With Quote
  #2  
Old 01-04-2004, 03:36 PM
Silver Member
 
Join Date: Jul 2002
Location: France
Posts: 390
Re: Results of H50BMG in a .264 Win. Mag.

thanks for the imput

what barrel lenght do you use in your 264 win

in my 6.5/300 DTC YUMA ( 264 WIN mag long neck )30 inch barrel

I get 3350 with a 139 Scenar and 5.15 gramme ( 79.5 grain ) case full powder is Nobel SP13 ( commercial name of belgium mage PCL 9520 wwich is slow BMG or fast 20 mm powder ) , fed 210 M primer , case form in 300 WIN MAG .

good shooting

DAN TEC
__________________
DANTEC
Reply With Quote
  #3  
Old 01-04-2004, 05:23 PM
Silver Member
 
Join Date: Jan 2003
Location: NE Ohio
Posts: 112
Re: Results of H50BMG in a .264 Win. Mag.

It's a 28" Pac-Nor.

Seems like that 6.5 300 hums right along. I may try an even slower powder than the 50BMG just for kicks, but I'll probably have to order it special. Heck, I couldn't even get the H50BMG around here, I had to drive an hour and a half to get it.

Just noticed possibly confusing information. The temp here was 35 farenheit, not -35. The dash was a spacer. Not a good idea in hindsight.

Did you see an increase in accuracy using the full case of Nobel powder as opposed to a partial case of something else??? That's why I'm experimenting with the really slow stuff.

thanks.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Results of H50BMG in a .264 Win. Mag.
Thread Thread Starter Forum Replies Last Post
240 SMK, H50BMG powder, 300RUM...anyone? jmden Rifles, Bullets, Barrels and Ballistics 17 03-07-2013 10:14 PM
30-378 WBY and H50BMG Powder JL523 Reloading 4 10-13-2009 03:13 PM
300 RUM, 200g Accubond, H50BMG jmden Rifles, Bullets, Barrels and Ballistics 12 04-28-2004 11:38 PM
7mm RUM and H50BMG Velocity Data dwm Rifles, Bullets, Barrels and Ballistics 0 08-24-2003 01:07 PM
Anybody tried H50BMG in a 7MM RUM? DANTEC Long Range Hunting & Shooting 6 08-21-2003 09:55 PM

Current Poll
Do You Think Slingshots Should Be Legalized For Hunting Brown Bear?
Yes - 47.55%
846 Votes
No - 52.45%
933 Votes
Total Votes: 1,779
You may not vote on this poll.

All times are GMT -5. The time now is 06:48 AM.


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