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Rifles, Reloading, Optics, Equipment
Reloading
7mm RM and loads using 175 SMKs
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<blockquote data-quote="brianwinzor" data-source="post: 66366" data-attributes="member: 1067"><p>Craigp40, I owned a Rem 700 classic in 7mmRM in the mid 80's, so naturally I didn't have the opportunity to use the Sierra 175 MK. However, I did chronograph and test the 175 Sierra GameKing, as well as the 120 &amp; 140 Nosler BT's.</p><p></p><p>Judging from my results, I am sure that Re 25 will be not be too slowburning for use with the 175 grain bullet. </p><p></p><p>Using Remington cases, I found that to fill the case to the base of the neck, it took about 76.0 grains of a long cut extruded powder such as IMR 7828, and 83.5 grains of ball powder such as H870. I estimate that a short cut extruded powder such as Re 25 would have occupied about 78 - 79 grains. My chrono results with the 175 MK,Rem cases, Fed 215 primer, were:</p><p>65.0 grains IMR 7828 - 2740 fps</p><p>66.0 grains IMR 7828 - 2808 "</p><p>67.0 grains IMR 7828 - 2883 " (Max)</p><p></p><p>76.0 grains H870 - 2841 fps</p><p>77.0 grains H870 - 2901 fps</p><p>78.0 grains H870 - 2977 fps (Max)</p><p></p><p>Generally most people tend to use the 140/150 grain bullets for medium game, and use the 175 grain bullets for larger game. I have not heard how the 175 grain MK performs in the field. Regards,Brian.</p></blockquote><p></p>
[QUOTE="brianwinzor, post: 66366, member: 1067"] Craigp40, I owned a Rem 700 classic in 7mmRM in the mid 80's, so naturally I didn't have the opportunity to use the Sierra 175 MK. However, I did chronograph and test the 175 Sierra GameKing, as well as the 120 & 140 Nosler BT's. Judging from my results, I am sure that Re 25 will be not be too slowburning for use with the 175 grain bullet. Using Remington cases, I found that to fill the case to the base of the neck, it took about 76.0 grains of a long cut extruded powder such as IMR 7828, and 83.5 grains of ball powder such as H870. I estimate that a short cut extruded powder such as Re 25 would have occupied about 78 - 79 grains. My chrono results with the 175 MK,Rem cases, Fed 215 primer, were: 65.0 grains IMR 7828 - 2740 fps 66.0 grains IMR 7828 - 2808 " 67.0 grains IMR 7828 - 2883 " (Max) 76.0 grains H870 - 2841 fps 77.0 grains H870 - 2901 fps 78.0 grains H870 - 2977 fps (Max) Generally most people tend to use the 140/150 grain bullets for medium game, and use the 175 grain bullets for larger game. I have not heard how the 175 grain MK performs in the field. Regards,Brian. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7mm RM and loads using 175 SMKs
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