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7mm mag powder choice?
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I have a new 7mm mag in sendero with a 26''barrel.I would like to know what the best powder would be for the 150gr b.t. by nosler.thanks for any help.
 
Posts: 117 | Location: Rock Hill, S.C. | Registered: 13 April 2004Reply With Quote
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I like Reloader-22 and IMR 4831 for the light ones(145-154).
H870 or H570 for the 175 grainers.




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Back to Exodus mine again learning teaching and operating autonomous loaders in the underground. Bringing everyday life to most individuals 8' at a time!
 
Posts: 3090 | Location: Northern Nevada & Northern Idaho | Registered: 09 April 2005Reply With Quote
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I have my best luck with H4831 and 4831sc with the 140's. My 7 mag won't shoot any bullets heavier than that worth a darn.


Frank



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Posts: 12826 | Location: Kentucky, USA | Registered: 30 December 2002Reply With Quote
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IMR 7820 and H4831 best luck I have had with my Sako 7mm
 
Posts: 319 | Location: Arizona | Registered: 31 January 2004Reply With Quote
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IMR 7828 and RL22.


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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imr4831 & rl22 with 160 gr, h4350 with 139 interbonds...
 
Posts: 1125 | Location: near atlanta,ga,usa | Registered: 26 September 2001Reply With Quote
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IMR 7828 and V-V N160. Both powders put my 7m/m mag (26"bbl) over 3050FPS with 160 grain bullets.
I also load Sierra's 160 grain HPBT interchangeably with the partition, and both shoot to the same point of impact with N-160. I really like that powder.
 
Posts: 3889 | Registered: 12 May 2005Reply With Quote
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AAdams,

The best luck I've had is w/ R22.

In a Factory 700 ADL w/ a 24" tube sitting in a glass bedded HS Precision stock it will shoot 1/2" consistently w/ the 150 NBTs. I'm loading 66.5 grains right now but, I've had great luck from 65-67 grains. 67 is Hot so be careful and work up to it. W/ 66 grains she chronos 3100 fps w/ the 150 NBTs, w/ that Sendero, you'll probably get closer to 3150.

Good Luck!

Reloader
 
Posts: 4146 | Location: North Louisiana | Registered: 18 February 2004Reply With Quote
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I am using Ramshot Magnum with good results. It is both easy metering and temp insensitive.
 
Posts: 46 | Location: Colfax WA | Registered: 21 August 2003Reply With Quote
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I have been using IMR4831 with Nosler 150 gr bullets, the NBT will group 1/2" @100 and Partition 3/4-1" at 100. In this particular rifle I have found closer to max seems to provide the most consistant accuracy for a 3 - 5 shot grouping (1 - 2 gr below posted max in Nosler 4th).

I just got some RL22 and loaded it behind 140gr Barnes TSX, it averaged under 1" with 1 grain off published max (69gr). However I experienced a sticky bolt, yet no signs of excessive pressure shown. Does anybody find RL22 fincky in high heat (it was over 80 the entire time I was shooting last evening)? I also found stick with my 67 gr tsx load and even a few factory loaded NBT's, so not sure if my throat is just tight or what. Never had this type of trouble in the past then again I also never have shot when so warm....ah isn't it fun!

Best of luck
 
Posts: 130 | Registered: 12 May 2004Reply With Quote
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RL25 and Retumbo for 160 and above. RL22 and IMR7828 below 160.
 
Posts: 1111 | Location: Edmond,OK | Registered: 14 March 2001Reply With Quote
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I tried RL22 and IMR4831 in mine and am using H4831 and H1000 for the 160gr bullet
 
Posts: 2209 | Location: Delaware | Registered: 20 December 2002Reply With Quote
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My best luck for 140 - 160g bullets has been with RL 22.
 
Posts: 498 | Location: Georgia | Registered: 13 January 2002Reply With Quote
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My best 140-grain load uses H4831, and for 175-grainers I prefer IMR 7828...


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Posts: 4386 | Location: New Woodstock, Madison County, Central NY | Registered: 04 January 2005Reply With Quote
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RL 22 has been my favorite.


A shot not taken is always a miss
 
Posts: 2788 | Location: gallatin, mo usa | Registered: 10 March 2001Reply With Quote
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quote:
Originally posted by AAdams:
I have a new 7mm mag in sendero with a 26''barrel.I would like to know what the best powder would be for the 150gr b.t. by nosler.thanks for any help.


Take Rottweil 905 or Reloader 22!
 
Posts: 276 | Registered: 28 January 2005Reply With Quote
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H1000


Ted Kennedy's car has killed more people than my guns
 
Posts: 7906 | Registered: 05 July 2004Reply With Quote
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I've had excellent results with H1000, and like the fact that it's a Hodgdon Extreme powder and can be relied to be temperature insensitive. Very consistent behind Hornady 162 A-maxs and 154 SSTs.


Tim

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Posts: 136 | Location: The People's Republic of Maryland--Hah! | Registered: 19 April 2005Reply With Quote
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I like, and my 7mm Rem Mag likes Accurate Arms "Magnum Rifle Powder"! This powder is also known as AA-3100!

Very clean and accurate!


Chuck - Retired USAF- Life Member, NRA & NAHC
 
Posts: 454 | Location: Russell (way upstate), NY - USA | Registered: 11 July 2003Reply With Quote
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I've had good luck with RL19 - 63.5g under the Accubond 160g.


-Power
 
Posts: 3 | Registered: 01 April 2004Reply With Quote
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