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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 thunder project
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<blockquote data-quote="Guest" data-source="post: 85646"><p>hmmm.. I question this...</p><p></p><p>1 mile is what 1760 yards. You do all this work to a 338 RUM case and then choose a morginal bullet for Elk at that distance. Yes the AB's are good bullets but by your numbers and my calculations... you only have..</p><p></p><p>1256 fps and 775 ft. lbs at 1750 yards...and loosing everything realativly fast because at 1700 yards you were at 1282 fps and 822 ft. lbs. </p><p></p><p>I seriously doubt your gonna get 3200-3300 from 92-95 grs of powder but maybe with another 3" of barrel.</p><p></p><p>Why wouldn't you shoot the 300 gr SMK.. at 2750 fps? You then have at least 1175 ft lbs of energy at 1750 yards...that is more suitable for Elk.</p><p></p><p>Now I am not sure how much Elk hunting you've done but you are boarder line whitetail killing energy. Even the 250 gr Lapua Bullet has better energy at that distance. And you are choosing a powder that is temp sensitive so your load work up at 60* will more than likely not give you the same velocity at 30* and will be much slower and this creates even more problems...</p><p></p><p>I'd like to see you reconsider your choices. As I said given your numbers ( with some error due to whatever elevations you are hunting) ( I inputed 5000 asl ) .. you are marginal to say the least. Surely the Majestic Elk deserve a bit more respect than whitetail killing energy...</p><p></p><p>Back to the drawing board???</p></blockquote><p></p>
[QUOTE="Guest, post: 85646"] hmmm.. I question this... 1 mile is what 1760 yards. You do all this work to a 338 RUM case and then choose a morginal bullet for Elk at that distance. Yes the AB's are good bullets but by your numbers and my calculations... you only have.. 1256 fps and 775 ft. lbs at 1750 yards...and loosing everything realativly fast because at 1700 yards you were at 1282 fps and 822 ft. lbs. I seriously doubt your gonna get 3200-3300 from 92-95 grs of powder but maybe with another 3" of barrel. Why wouldn't you shoot the 300 gr SMK.. at 2750 fps? You then have at least 1175 ft lbs of energy at 1750 yards...that is more suitable for Elk. Now I am not sure how much Elk hunting you've done but you are boarder line whitetail killing energy. Even the 250 gr Lapua Bullet has better energy at that distance. And you are choosing a powder that is temp sensitive so your load work up at 60* will more than likely not give you the same velocity at 30* and will be much slower and this creates even more problems... I'd like to see you reconsider your choices. As I said given your numbers ( with some error due to whatever elevations you are hunting) ( I inputed 5000 asl ) .. you are marginal to say the least. Surely the Majestic Elk deserve a bit more respect than whitetail killing energy... Back to the drawing board??? [/QUOTE]
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338 thunder project
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