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Powders for 300 win mag

 
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  #8  
Old 09-29-2004, 06:29 PM
Silver Member
 
Join Date: May 2004
Location: MD.
Posts: 225
Re: Powders for 300 win mag

Jaeger
R-22 works great for me with 165's and 180's.
With R-25 I could get even more FPS's with the 180's and good groups. I'm going to load some 200 and would like to try R-25 anyone tried it????
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  #9  
Old 09-29-2004, 08:51 PM
 
Posts: n/a
Re: Powders for 300 win mag

Jaeger476:

First off, I use both the IMR 4831 and the Hodgdon 4831SC in my .300 win mag. The IMR is a hotter, snappier, and quicker burner, by about 5%. The Hodgdon is smoother burning and takes three Ė five grains more powder to achieve the same velocity as the IMR. I am utilizing the IMR because I have so much of it, however I prefer the Hodgdon.

My loads for my .300 win mag utilizing Remington Cases is 66.8 grains of IMR 4831 and the Fed 215m primers and Berger VLD 210ís. If I were to charge Winchester cases it would be 67.8 grains, because different manufactured cases in general create different pressures.

I have found Winchester brass to produce the slowest results (probably the least desired brass), where Remington cases produce faster results and Federal cases even faster. This is because of the thickness of the casing wall, the different parts of the cases that have different hardness (neck and head) and itís overall tempering/annealing.

Remington Brass is alright but Norma or Lapua is best.
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  #10  
Old 09-29-2004, 09:55 PM
 
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Re: Powders for 300 win mag

Well,
24" Barrel Mike Rock
I have used RL-22 and H4831 -
RL-22-71.3 Grains/Win Brass/ 190 SMK - 2950 FPS@85F

-GREAT RESULTS AT 1K!
H4831-73.0 Grains/Lapua Brass/ 190 Berger VLD -2880 FPS@75F
GREAT RESULTS AT 1K!

Thanks,
BearMan
I like Berger Bullets so far, I have only shot them at one match, I'm still waiting to see if they are the best for my rifle.?
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  #11  
Old 09-30-2004, 07:46 AM
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Join Date: Jun 2004
Posts: 13
Re: Powders for 300 win mag

W I have been led to believe that winchester cases were among best out of remington, federal and winchester. I'm sure that Lapua and Norma brass are great but they are difficult to get where I am. I personally have been looking at the cases from a consistency point of view and have found that winchester seems to have the most consistent cases lot to lot. Maybe I just got lucky, I would be interested to know a little more about the pros and cons of the different cases.
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  #12  
Old 09-30-2004, 08:16 AM
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Join Date: Apr 2004
Location: Michigan-USA
Posts: 75
Re: Powders for 300 win mag

My best results have been with R-22 as well. I shot my smallest group with a load of H-4831sc, but the velocity wasn't there so I use R-22 (still getting sub moa accuracy). I'd try either of those powders. What velocity were you getting IMR 4350?
__________________
....when they pry my cold dead fingers from around it
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  #13  
Old 09-30-2004, 10:00 AM
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Join Date: Jun 2004
Posts: 13
Re: Powders for 300 win mag

I was getting about 2860 fps with 68.0 grains of IMR4350 and a 200 grain sierra boat tail.
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  #14  
Old 09-30-2004, 07:00 PM
 
Posts: n/a
Re: Powders for 300 win mag

Jaeger476:
The Winchester brass has lasted me quite awhile and produces consistant velocities. However, and this can get a bit involved... But it is softer and I have had cases fail to eject out of my Rem 700 LA. The head just wears out after awhile. Perhaps true with other brass too, but the Remington which is a mixed bag of worms when you get it (varying weight and volume) once sorted out shoots well. The Federal (non-nickle) appeared to be the most consistant other than Norma and or Lapua. I just throughout five-hundrd very used Winchester cases.
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