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7MM Loads

 
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  #1  
Old 03-25-2008, 09:41 PM
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Join Date: Mar 2007
Location: Saskatchewan
Posts: 15
7MM Loads

I just started shooting my Remington 700 Boone & Crockett 7 Rem. Mag.(9 1/4 twist).I had planned on re-chambering it to 7STW,but I think I will shoot it for awhile like this and see how it works.I picked up some Sierra 160 HPBTs today.I'm wondering if any body has any good loads for starters.
Thanks
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  #2  
Old 03-26-2008, 10:51 PM
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Join Date: Feb 2008
Posts: 7
for varmints 120gr v-max rl-22 it shoots great out of my rem 700 for big game 140 or 160gr nosler partition i use rl-22 and imr 4350 i haven't use the bullet you have
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  #3  
Old 03-27-2008, 10:59 AM
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Join Date: Feb 2008
Location: Memphis Tn
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When I reload my Ruger Mark II in 7mm Rem mag..With 160 grain bullets I have found that either H1000 or RL-22 works great. My gun has a long throat so I hesitate to tell you the loads that I use. Get on Alliant web site and go to 7mm Rem Mag. they will give you loads for different bullet weights using RL-19,22, and 25. I love the RL-22 when I am shooting 160 grain bullets. I have an elk load that consists of 160 Barnes TSX , RL-22, RP cases, and WLRM primers. It will shoot .5 group any time you want. the velocity of this load is just under 3000 ft/sec..

When I am shooting for fun I love the 140 Nosler Bt and either IMR-4831 or IMR-4350. I use a starting load of IMR-4831 (62.0 grains)which in my gun only produces about 2900 ft/sec. This load is very accurate and is very easy on the shooter.
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  #4  
Old 03-30-2008, 04:52 PM
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Join Date: Mar 2008
Location: Boise, Idaho
Posts: 71
7mm loads

I have been shooting 7mm mag for 35 years. It is a wonderful caliber. My suggestions for starting loads is to go to: Sierra Bullets - The Bulletsmiths and start with their suggested starting loads and work up from there. 4831 is perhaps the most versatile powder I have used in the 7mm, but I have found myself loading H870, H414, IMR 4350, RL22 etc. You will find differences in IMR 4831 and H4831.

You will find Alliant's RL22 recipe at www.alliantbullets.com, but I suggest you back off at least 3 grains for a starting load and work up from there.

I also shoot a .280 Rem and find that I see pressure signs about 2.5 grains back of max loads from most manuals in that particular weapon.
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  #5  
Old 03-30-2008, 08:26 PM
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Join Date: Mar 2008
Location: Alabama
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Quote:
Originally Posted by fariswm View Post
I also shoot a .280 Rem and find that I see pressure signs about 2.5 grains back of max loads from most manuals in that particular weapon.
Since all .280 data is at or under 60Kpsi, and it's safe to load it to .270 pressures of 65K psi, I find that hard to believe unless you have a very tight tolerance custom bbl. I have seen a custom .280 that wouldn't take max loads. I consistently run 2-6 grains over book max powder charges in the .280Rem, and with my velocity, Quickload still says I'm hovering around 62K-63K psi. I'm running 139s/140s 3080-3150fps, and 150s/154s 2980-3015fps in a 24" Rem 700.

What are your velocities? Afterall, that's what counts when it comes to pressure, not the on paper max powder charge.

To answer the original question. R-22 is the cat's meow for me and most in the 7mm. 66grs and a 160 Accubond run 3080 in my 25.6" bbl, and get under 3/4".
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  #6  
Old 03-30-2008, 08:40 PM
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Join Date: Jan 2007
Location: North Idaho
Posts: 670
Here's my load: Berger 180vld seated to lands. Federal GM215 primers. Nosler Brass. 68 grains of Retumbo. Accuracy: under .5 moa.
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  #7  
Old 03-31-2008, 02:08 AM
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Join Date: Mar 2008
Location: Boise, Idaho
Posts: 71
I'm shooting a Ruger #1- no custom barrel. Primers are flat at 2 gr under max load for most bullet weights. Have never chronographed any loads so I can't tell you velocity. I guess maybe its time I purchased a chronograph. Weapon shoots MOA with several bullet weights- even with me shooting it.
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