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Powders for 7mm Remington Magnum

 
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  #22  
Old 07-18-2012, 07:43 PM
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Re: Powders for 7mm Remington Magnum

I was out shooting my 7 Rem Mag today. My loads were a common charge of 70.5 grains of H1000, 162 amax, and a fed 210m primer. Accuracy was around a half inch. Velocity was only around 2880 fps in my 26.5", Krieger 9.5 twist barrel. The second load I was shooting was 70.5 grains of Re-25 with 162 Hornady SST's and Fed 210M primers. The velocity averaged 2950 fps and the 5 shot groups were again around a half inch. I tried 5 rounds of 168 Bergers with 70.7 grains of H1000/210M primers, but the accuracy wasn't very good. I seated the vld .030 off the rifling. How much H1000 can a guy use. I read the previous post that said he used 72.5 grains. It would be nice to get around 3050 fps with a safe load but I'm happy with the Re-25 load right now.
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  #23  
Old 07-18-2012, 08:20 PM
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Re: Powders for 7mm Remington Magnum

The best groups out of my 7mag and three others that i load for are 69.5gr of H1000, Nosler brass, 168gr berger, and LARGE cci primers. As soon as I switched from the magnum to large primer the accuracy was night and day and Im still getting 2900fps out of the 26 inch barrel with a 9 twist, Which Im absolutly satisfied with.
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  #24  
Old 07-18-2012, 09:00 PM
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Re: Powders for 7mm Remington Magnum

My 7mag was fine with 73 gr H1000 and 168 Berger
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  #25  
Old 07-18-2012, 09:38 PM
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Re: Powders for 7mm Remington Magnum

Quote:
Originally Posted by Long Time Long Ranger View Post
Magpro does well also.
Unfortunately Magpro will hang-fire with federal primers. Try it, it works. A second or two before it goes. You've got to use win or cci primers for that powder. I even talked with sierra about it since I was using their bullets; I had called about 25wssm load data when it was new and brought that up also. Rich brought me up to speed on the chemical reaction issues with Magpro and a2700 with some primers. Needless to say I threw my Magpro out.
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  #26  
Old 07-18-2012, 09:54 PM
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Re: Powders for 7mm Remington Magnum

The load I use is way beyond hodgdons max but shows no pressure in my rifle, savage 110f 24" barrel, Fed match brass, Fed210M primer, 67.5grns H4831sc, 162 Amax .010" in the lands 3032fps avg, will go 3065fps with 68grns but opens up a tid bit. I have also broke 3160fps with the same combo except 72.5grns H1000 and Fed215Ms but the ES was not acceptable. These loads are way over on there site, if you try them Start 4-5grns LOWER.
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  #27  
Old 07-19-2012, 09:55 AM
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Re: Powders for 7mm Remington Magnum

I have a savage 111 in 7mm rm, it's throat is a lot longer than other rifles in that cal. so, when I load I over all lenght to 3.460" this allows me to have the bullet in contact with the rifleing when it is chambered. I never crimp my bullets and neck sise only.

My favorite plinking load is 140 grn sp 50.0 grns IMR 3031 with a standard primer 2910 fps. It is a very accurate load, comfortable to shoot (moderate recoil) BUT since 3031 really is not good for large volume cases it heets up the barrel so, a cool down between shots is adviseable.

For hunting, 150 grn ETIP 67.0 grns IMR 7828 with a mag primer 3000fps. Again a very accurate load (moderate to heavey recoil). Nothing I have shot with this bullet / load combo needed a second shot.

for serious targets 162 grn AMAX 63.5 grns IMR 7828 mag primer 2900 fps. A nail driver but, it is a pounder (heavey recoil)

I have a few hundred 175 grn sps but have yet to find a load that I am satisfied with for this weight, either the recoil is too much for me or the accuracey is compareable to a 12 gauge. I plan on getting some H1000 and trying that out. any sudjestions?

The velosities I have put here are from estamates I got by useing the published data and adjusting for the amount of actual powder I used. I wish that I had a chrono so that I knew the actual velosities (note to self time for dropping xmas wish hints).
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  #28  
Old 07-19-2012, 01:58 PM
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Re: Powders for 7mm Remington Magnum

Gordo you need to look at Retumbo for 175grn pills starting at 67-68grns with fed215 or cci250 primers.
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