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Posted: 7/26/2009 8:25:42 PM EDT
| Anyone loading 7mm rem mag using 175gn nosler partitions with reloader 22 powder? Shooting these out of a savage bolt gun. Can't seem to get the groups tighter than 1.5 inches. Any ideas? Thanks. |
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Anyone loading 7mm rem mag using 175gn nosler partitions with reloader 22 powder? Shooting these out of a savage bolt gun. Can't seem to get the groups tighter than 1.5 inches. Any ideas? Thanks. I'm not using that powder or bullet. I've been using Hornady 100gr HPs for practice and Hornady 162gr BTSPs for serious work. I'm using a Stevens 200 bolt action. Have you shot any other loads that got better groups? I'll tell you, the biggest impediment to me shooting well with the Stevens was the flinching because of the recoil of 7mm RM in such a light gun, plus the Stevens's heavy trigger (replaced it with a SSS trigger). A lot of the synthetic stocks used by Savage have a tendency to be fairly flexible. If you're using a bipod, shoot without it, and rest the front bag as close to the receiver as possible. The plastic stocks sometimes flex just enough to hit the barrel during firing. I also found that at least my rifle is very sensitive to powders when it comes to accuracy. I never could get very good groups using US 869, but with Winchester 760 (what I use with the 100gr practice loads) it's quite accurate. You might give Retumbo a try; it's supposedly the very best powder for 7mm RM. |
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The 7mm rem mag isn't a heavy recoiling rifle IMO, that is a subjective judgment in the shoulder of the beholder. 
From Chuck Hawks: Managed-Recoil is desirable because it allows a quicker recovery of the sight picture, better shot placement, and less anticipation of recoil. Lower recoil is precisely the reason that cartridges along the lines of the 6.5x55 and 7x57 have earned such a deadly reputation in game fields all around the world. It also allows recoil sensitive shooters, which includes nearly all beginning hunters as well as many women and youth, to use (or borrow) existing "all-around" rifles, often without the necessity for scope adjustment. And it allows more practice shooting at the range without discomfort. As the Remington literature points out, "Practice Makes Perfect." Managed-Recoil cartridges were introduced in calibers .270 Winchester, 7mm Remington Magnum, and .30-06 Springfield. In 2005 the .308 Winchester and .300 Winchester Magnum were added to the Managed Recoil loading list. Managed-Recoil cartridges are designed to reduce the actual recoil energy of these cartridges by about 50%. A 175 gn bullet at full zip out of a 7mmRemMag sounds like some healthy recoil to me. But, that is just me. I just shoot 44mag, .308, 7mm-08, .243, and 5.56mm. |
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7mm STW
76.5 gr of IMR 7828 behind a 150gr Combined Technologies Ballistic Tip WAS a shoulder crusher until I put it in a Choate stock filled with lead. Rifle weighs over 20 pounds and is a dream to shoot. From the bench ONLY. I aint lugging that heavy ass thing any further than from the car to the bench and back. 
If I give the barrel time to cool I can keep it right at MOA,maybe 3/4 if I'm really in a groove. |
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Anyone loading 7mm rem mag using 175gn nosler partitions with reloader 22 powder? Shooting these out of a savage bolt gun. Can't seem to get the groups tighter than 1.5 inches. Any ideas? Thanks. Nosler partitions are not match bullets. They are hunting bullets, and slightly less accurate than other bullets. As an example in my 308 Ruger 77, 3x9 Leopold, 5 shot 100 round groups with Sierra 150 gr spitzer bt's go into 3/4" groups. Same load, rifle, distance, 150 gr Nosler Partitions go into 1 1/4 to 1 3/8" groups. I can live with that. Some suggestions, try another powder, IMR-4831 is all I used when I had a 7mm mag. Also try the same load with a Sierra 175 gr SBT bullet. Good luck |
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The 7mm rem mag isn't a heavy recoiling rifle It isn't an elephant caliber for sure but hunched over a sitting bench position 10 to 12 full power loads are enough for me.... 10 target rounds is about it for me too. I normally load IMR 4350 witn 140 grain spire point Hornady's for deer and hogs. |
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I can buy a used mail order 223 that weighs 8 pounds and get .4" groups @100y from a bench with 33 gr bullets on the first target.
I can buy a used mail order 7mmMag that weights 8 pounds and get 1.5" groups @100y from a bench with 175 gr bullets when everything is just right. Most trips to the range, I get 1.5" groups @50y with the 7mmMag. If I were to build a 30 pound 7mmMag, I think I could get .4" groups. |
| The most accurate load in my Model 70 is a 139gr Hornady boattail with enough RL-22 to get 3250fps it allways does under 3/4" for 3 shot groups, my rifle is a biggame rifle, and 5 shot groups in a biggame rifle is not realistic. As for recoil, the 175's seem milder than the fast moving 139's. My 7mm-08 seems the same, the 120's kick more than 140's |
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1.5" is rough. going through the other checklists, do you have a decent bench setup? Have you been able to shoot better loads consistently? What are the loads you are trying? My experience loading for 7mm rem mag is w/ re19 with 120 & 140 grain nosler BTs. Those are both some really nice loads. |
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