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Been working up some loads for a 77 mm Ruger Mk II Stainless (boatpaddle stock)I picked up. Using 70 gr RL22 and 150 gr NBT's getting 3215 fps and nice 3/4" three shot groups. With 175 gr Hornady SP and 64.5 gr of same powder getting 2925 fps and tight 3/4" or smaller groups - all using WLR primer. These are high end loads so don't start here - they are safe in my rifle but may not be in yours - also velocity deviations are very small = 4-20 fps. The thing that is nice about this rifle is I have not had to do a thing to the bedding and each time to the range the impact point stays put. | ||
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I have the same rifle/calibre and have not had to do a thing to it for satisfactory accuracy. I used to load 154 hornady's in her for deer size game and managed to get a 3/8" group one day. Mostly just under 1" though. I don't load it for deer sized game anymore since buying my 25/06. It also loves federal premium 175gr TB loads. Sub moa with those also. Have you had the chance to compare recoil with that rifle to other 7rem mags? I load for three and it by far kicks the hardest. It is a tough rifle though. Mine's taken a pounding and she's none the worse for wear. | |||
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rifleman, your experience seems to be borne out by Ken Waters. About 5 years ago he wrote an article in "Handloader" Magazine and his conclusion was that the most accurate load he was able to work up in the 7mm Remington Magnum was a 150-grain Ballistic Tip pushed by about 67 grains of IMR 7828 or Reloder 22. | |||
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I've had great results with 162 Hornady and 66.5 grains of H4831. Shoots sub inch and has a velocity of 3000 fps. Bob257 | |||
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65.0 gr IMR7828 175 Hornady Interlock CCI250 primer Win cases ave vel: 2933 fps 1/2 inch groups (5 rounds at 100yds.) Browning "A" Bolt composite stalker 26" bbl. 3/4 -1.0" groups at 200 yds. 70.0 gr H-1000 160 Speer BTSP CCI250 primer Win cases Ave vel: 2934 fps 3/8 - 1/2" groups (5 rounds at 100 yds) 3/4" at 200 yds. 154 Hornady Interlock 64.3 gr RL-22 CCI200 primers REM cases ave vel: 3000 fps 3/8 - 1/2" groups (5 rounds @100 yds.) 3/4 - 1.10" @ 200 yds. 150 Nosler Bal. Tip 62.5gr IMR4350 CCI250 primers Win cases ave vel: 3043 fps 3/4" groups (5 rounds at100yds.)/ 1.0" @ 200 yds. 145 Speer Hot Core "Spitz" 61.0 gr RL-19 CCI250 primer Win cases ave vel: 3110 fps 1/2 - 3/4" groups at 100 yds./ 1.25" @ 200 yds 168 gr Sierra HPBT Match 68.0 gr H-1000 Win cases ave vel: 2889 fps 1/2 -3/4" groups at 100 yds and 200 yds. 1.25" groups at 300 yds. ( Most accurate bullet I've found capable of 3/8" groups or better if I do my part.) Too bad it's not recomended for hunting! The 175 Hornady Interlock with 76.0gr H-870 is my favorite hunting load for consistent accuracy at all ranges but the powder is no longer available so I hear. These were chronographed with a CED Millineum and all results were from bench rest. These are not particularly hot loads but as always work up from below! BLR7 | |||
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About the recoil - when I am at the range I am also usually shooting a 338 WM and a 270. The 7mm sort of just sits in the middle - closer to the 270. I just took the stock to my favorite gunsmith to have him replace that hard rubber butt pad that comes on the boat paddle stock with a Pachmyr Accelerator - will also add 1/2" to the pull length which I like. I specifically looked for a Ruger 7mm in stainless with this stock - it will not break or peel and the stock is not hollow so it won't crack either. Generally I am not a synthetic fan - but I have grown to like the looks of this stock with its inserts and stainless steel sling swivels- the dealer told me that used Rugers with this stock are very much in demand. I want to try the new Barnes Triple Shocks in 140 gr - test reports say they are very accurate and penetrate beyond their weight class. | |||
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Used this load out of hornady volume 11 book for 31yrs out of 3 different 7mags-139gr Hornady Interlock-with H-4831-69.8grs--14 elk and count less deer, with this load and bullet. | |||
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Most accurate load for my rifle was found to be: 62.5 grains IMR 4831, using a nosler 160gr partition. rifle will shoot 1/2" groups at 100yds with this load. I also had a trigger job synthetic stock, barrel free floated with glass bedded action. | |||
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