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Question for FIFTY (Kirby Allen)????
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<blockquote data-quote="hvyw8t" data-source="post: 108574" data-attributes="member: 4016"><p>I dont think the vmax line of bullets could handle the kind of velocity the big 7AM can dish out here is why. I have driven 40 grain nosler bts out of a 22-6mmAI to speeds in excess of 4500fps. They held together just fine. In my 257 stw i have driven 85 grain noslers to 4150fps no problem, they even grouped in the .2s and .3s. Just for kicks one day i loaded up just 2 cases with 75 grain vmax to see what they would do. They crossed my chronograph at 4370 fps but didnt make it to the target. A very few little bits of jacket made it there but thats it. I dont think the vmax jacket esp. the heavier .257 and .284 class can handle the tourque and speed that some cases can dish out. Where the 7mm am really shines is with big heavy vld style bullets, thats where it will pull away from the 7rum and 7stw, not with 120s and 140s. You want a rocket for a varmint rifle build a 6mm-06 AI. It will crank out 55s at 4400fps and 70s at 4000fps. Talk about splatter factor! Good luck...</p></blockquote><p></p>
[QUOTE="hvyw8t, post: 108574, member: 4016"] I dont think the vmax line of bullets could handle the kind of velocity the big 7AM can dish out here is why. I have driven 40 grain nosler bts out of a 22-6mmAI to speeds in excess of 4500fps. They held together just fine. In my 257 stw i have driven 85 grain noslers to 4150fps no problem, they even grouped in the .2s and .3s. Just for kicks one day i loaded up just 2 cases with 75 grain vmax to see what they would do. They crossed my chronograph at 4370 fps but didnt make it to the target. A very few little bits of jacket made it there but thats it. I dont think the vmax jacket esp. the heavier .257 and .284 class can handle the tourque and speed that some cases can dish out. Where the 7mm am really shines is with big heavy vld style bullets, thats where it will pull away from the 7rum and 7stw, not with 120s and 140s. You want a rocket for a varmint rifle build a 6mm-06 AI. It will crank out 55s at 4400fps and 70s at 4000fps. Talk about splatter factor! Good luck... [/QUOTE]
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