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Old February 1, 2011, 10:34 PM   #1
Join Date: March 21, 2009
Location: Peoria, IL
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7mm Rem Mag - Favorite Loads

So I have been contemplating reloading for a while and I finally jumped in. I am looking for your favorite loads for 7mm Rem Mag - hunting loads and target loads please.
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Old February 1, 2011, 11:56 PM   #2
Tex S
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Out of curiosity, what rifle will you be using?
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Old February 2, 2011, 01:01 AM   #3
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CAUTION: The following post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information.

I worked up a load with 180 gr Berger VLD hunting bullets that I moly coated.
At 72 gr Re22 3.48" jammed into the lands, on decapping and re priming, I can feel it is slightly easier to insert the primers than in new brass.
So I backed off to 70 gr Re 22.
It chronographs at 3025 fps average from a 26" barrel.
At 11 pounds with scope, sling, and bi- pod:
0.82" 3 shot group at 100 yards firing from bench using bi-pod.
11.3" 3 shot group at 500 yards firing from prone with bi-pod

I killed 3 deer with this in 2010.
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Old February 2, 2011, 02:19 AM   #4
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Clark generally has some good advice and it's all backed up by his personal experiences. So I would ponder his results pretty seriously. In this particular case though, I went the opposite direction from Clark. I don't have his experience of course. But initially, I started out with 162, 168 and 175 gr bullets from Hornady or Sierra. I got so-so results I suppose but not exciting for my 2 different 7 mm mags. I'll admit I was kind of new to the art of load development then. But then I tried some Hornady 139 gr SST bullets with some H4831 and found a nice sweet spot for both rifles. Then I tried 140 gr Sierras with equally good results. The last combination I tried last fall was with 154 gr Hornady SST and they were promising as well. So far, I have only tried H 4831 and H 4350 on my load workups. The 4831 always seemed to be the best. Over the winter I finally got some RL-22 and some Supreme 780 powders and I have a whole batch of cartridges loaded up with different increments of those coupled with different bullets to try if it EVER warms up here.

Anyway, for me, it worked better trying the lighter bullets for accuracy. But I'm not finished yet.
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Old February 2, 2011, 08:50 AM   #5
Join Date: March 21, 2009
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Rifle Choice

Tex S, I am currently shooting a Browning A-Bolt topped with a Leupold 3-9x40. I am working myself up to a new rifle as well, but I will be sticking with .30 or larger for my next rifle.
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Old February 2, 2011, 08:56 AM   #6
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Thanks for the info, I currently have several different 150 gr options from Nosler and Barnes and H4831 and IMR4350 to put behind them. I wanted to get a pretty wide variety loaded up to try come spring as well.
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Old February 2, 2011, 11:10 AM   #7
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MY 7mm likes a Sierra 160 BTSP as the most accurate, with the Nosler 160 Partition getting the nod for serious hunting. IMR 4350, 4831, 7828 all have worked well for me
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Old February 2, 2011, 12:43 PM   #8
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Below 154gr, my 7s have liked IMR 4831 and 4350. At 154gr up, H-4831 and IMR 7828.
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Old February 2, 2011, 05:38 PM   #9
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I like Clarks stuff, but my loads are a little bit flatter. I use a Speer Hot Core 130 grain with 70.0 RE22 through my 700 CDL topped off with a 3.5x10x40 VXIII. My Son's and I killed 3 mule in 2010, 2 which were ranged at over 500 yds.. Through the chronograph, they were close to 3450 fps and grouped beautiful. I sighted in at 300 yds. and at 500 it was hardly necessary to compensate the shot. At 100 yds. it puts you only 3" high, doesn't interfere with possible close up shot. I'm working up a new load I found with a 145 grain and is likely going to be in the same velocity range, but with better B.C. characteristics. There is nothing to be taken lightly about this load, as it does produce some noticable pressures, probably close to max, but the brass is still looking OK. It's been good through 3 different rifles, a Rem. 710 and a Savage, don't know what model it's one of my Son's. and of course the 700 CDL.
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Old February 6, 2011, 09:44 AM   #10
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I've got two loads that are pretty accurate, one more so than the other. The first load is a "blemished" 150 grain, flat-based, spire point bullet that I bought from Midway several years ago (bought 2K of 'em). I've no idea who made them. Anyways, the particulars of the load are 60.3 grains of Reloader 19, Winchester Large Rifle primer, and assorted cases. This particular load gives me an average 3-shot group of about a half-inch at 100 yards.

The other load uses a 150 grain Remington Core-Lokt, 65.5 grains of Winchester Supreme 780, and a CCI 250 primer. 3-shot groups at 100 yards average just over an inch. I get an occasional group at about a half-inch, with most going about 1.2 inches.

When hunting, I use the Core-Lokt as it performs well on deer; entrance wounds the diameter of a pencil, and exit wounds the diameter of a golf ball, when taking a standard "behind the shoulder double lung" shot. I would like to add I learned that, when using this load, avoiding a shoulder shot is a good idea. The first, and only, shoulder shot I took using the Core-Lokt load pretty much ruined the far-side shoulder; entrance wound was the typical pencil hole, the exit wound was about as big as a softball. I will say that the deer shot was DRT.

Anyway, hope this helps.
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Old February 6, 2011, 04:01 PM   #11
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I have some 160 BTSPs (Sierra) loaded at 64 gr. of H4831sc. My 7 has always shot this really well. I do like the 140 BTSP's for flatter trajectory, and I'm contemplating going with a 130. Plan on playing with that combo soon. I've never used any other powder in this gun due to the accuracy I get with the H4831. I'm debating reloading some with Hv100 since my 243 likes that stuff so much, and the burn rate is between H4350 and H4831.
VEGETARIAN...old indian word for bad hunter
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Old February 6, 2011, 04:11 PM   #12
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"I am looking for your favorite loads for 7mm Rem Mag - hunting loads and target loads please."

I could give you mine but if you used it you would only be reloading for my rifle and it would almost certainly be useless for yours.
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