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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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<blockquote data-quote="pyroducksx3" data-source="post: 434301" data-attributes="member: 20443"><p>So again Im not saying its not possible but I just dont get it I guess. Looking in the hornady book now 7th edition. In response to this statement 162 AMAX</p><p></p><p>162 gr AMAX</p><p>79 GRN H-1000</p><p>Rem Brass</p><p>CCI 250</p><p>3340 AVG FPS</p><p> </p><p>In understand this is in a 28" barrel but in the manual a 7mm RUM in a 26" barrel using H-1000 at a charge of 87.3 with the 162 AMAX it only reaches 3100 fps. And a 7 RUM with 175 gr SP bullets with the same 26" barrel using a max charge of H-1000 at 87.3 gr only reaches 3000 fps. Compairing a weatherby 300 to a weatherby 7 using the same weight bullets the 7mm loses velocity as well. I just dont understand how you guys are picking up about 200 fps by necking down the 300 win mag and how with 77 grains of power you are achieving far more than the rum can with 87.3 gr of the same powder. </p><p> </p><p>Taken from Hodgons website 180 GR. SPR Hodgdon </p><p>H1000 .308" 3.285" 76.0 gr 2883 fps81.0C gr fps 3042 </p><p>So it doesn't state what barrel lenth these are taken with but from what I have found from looking it seems that just by necking down you can achieve similiar velocities by necking down from 300 to 7mm with slightly less powder so one could assume that 180 7mm vs 180 30 cal with the same charrge the 7mm would pick up velocity. But according to this with 81 gr of H-1000 using a 180 gr spr the 300 win mag reaches 3042 fps. So Im just confused how you guys get this 3175 with H-1000 at 77.0 gr pushing a berger 180 gr. Again Im not calling anyone a liar in fact Broz I have read many of your post and found that you have always seemed to speak honestly and without embellishment. I have always given your post a lot of credit. This is why Im so confused. I dont have much expierence with cartridge wildcatting or longrange hunting so I fall back on data that I can read and interpret, this time it just doesnt fit for me. I sure that these claims are accurate I'm just not sure how. What am I missing?</p></blockquote><p></p>
[QUOTE="pyroducksx3, post: 434301, member: 20443"] So again Im not saying its not possible but I just dont get it I guess. Looking in the hornady book now 7th edition. In response to this statement 162 AMAX 162 gr AMAX 79 GRN H-1000 Rem Brass CCI 250 3340 AVG FPS In understand this is in a 28" barrel but in the manual a 7mm RUM in a 26" barrel using H-1000 at a charge of 87.3 with the 162 AMAX it only reaches 3100 fps. And a 7 RUM with 175 gr SP bullets with the same 26" barrel using a max charge of H-1000 at 87.3 gr only reaches 3000 fps. Compairing a weatherby 300 to a weatherby 7 using the same weight bullets the 7mm loses velocity as well. I just dont understand how you guys are picking up about 200 fps by necking down the 300 win mag and how with 77 grains of power you are achieving far more than the rum can with 87.3 gr of the same powder. Taken from Hodgons website 180 GR. SPR Hodgdon H1000 .308" 3.285" 76.0 gr 2883 fps81.0C gr fps 3042 So it doesn't state what barrel lenth these are taken with but from what I have found from looking it seems that just by necking down you can achieve similiar velocities by necking down from 300 to 7mm with slightly less powder so one could assume that 180 7mm vs 180 30 cal with the same charrge the 7mm would pick up velocity. But according to this with 81 gr of H-1000 using a 180 gr spr the 300 win mag reaches 3042 fps. So Im just confused how you guys get this 3175 with H-1000 at 77.0 gr pushing a berger 180 gr. Again Im not calling anyone a liar in fact Broz I have read many of your post and found that you have always seemed to speak honestly and without embellishment. I have always given your post a lot of credit. This is why Im so confused. I dont have much expierence with cartridge wildcatting or longrange hunting so I fall back on data that I can read and interpret, this time it just doesnt fit for me. I sure that these claims are accurate I'm just not sure how. What am I missing? [/QUOTE]
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Anyone own a 7mm 300 Win Mag?
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