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My new .300 RUM
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<blockquote data-quote="remingtonman_25_06" data-source="post: 7317" data-attributes="member: 1403"><p>I bought a box of the factory 180g Nosler Partitions to shoot for breaking in the barrel and to get me started with 20 pieces of brass. I shot and cleaned after every shot for 10 shots, then shot 3 shots and cleaned till I was out of shells. 3 shot groups were a little over an inch with a flyer because of cleaning. On all my groups, the 1st shot was always a flyer but the 2nd and 3rd were 1/2" groups. They chronied an average of 3245fps 15 feet from the muzzle with no more than 30fps being the maximum deviation in velocity, and on a 80 degree day. I then shot 3 shots at 300 yards with the 180g Nosler partitions and it measured just over 2 inches. Next I tried my reloads of H-1000 and 200g SMK's. I loaded up 3 different loads or 9 shells altogether. 91g, 92.5g, and 94g of H-1000 seated to 3.6" They all gave me 1/2" 2 shot groups with the 1st shot on all of them being a flyer due to cleaning the barrel I suppose. I chronied the 94g load right at 3200fps. Maximum deviation was 25fps. I will try them next at 300 yards then sight in dead on at 100 and get my ballistic charts ready at least out to 600 yards on Friday and shoot a couple at milk jugs at 500 and 600 yards to test out how close they are and make any final adjustments. My deer season starts Saturday so I will be hopefully done just in time. I'll keep all posted on how everything goes. </p><p></p><p>PS. I got the small problems fixed. Thanks for all the helpfull advice.</p></blockquote><p></p>
[QUOTE="remingtonman_25_06, post: 7317, member: 1403"] I bought a box of the factory 180g Nosler Partitions to shoot for breaking in the barrel and to get me started with 20 pieces of brass. I shot and cleaned after every shot for 10 shots, then shot 3 shots and cleaned till I was out of shells. 3 shot groups were a little over an inch with a flyer because of cleaning. On all my groups, the 1st shot was always a flyer but the 2nd and 3rd were 1/2" groups. They chronied an average of 3245fps 15 feet from the muzzle with no more than 30fps being the maximum deviation in velocity, and on a 80 degree day. I then shot 3 shots at 300 yards with the 180g Nosler partitions and it measured just over 2 inches. Next I tried my reloads of H-1000 and 200g SMK's. I loaded up 3 different loads or 9 shells altogether. 91g, 92.5g, and 94g of H-1000 seated to 3.6" They all gave me 1/2" 2 shot groups with the 1st shot on all of them being a flyer due to cleaning the barrel I suppose. I chronied the 94g load right at 3200fps. Maximum deviation was 25fps. I will try them next at 300 yards then sight in dead on at 100 and get my ballistic charts ready at least out to 600 yards on Friday and shoot a couple at milk jugs at 500 and 600 yards to test out how close they are and make any final adjustments. My deer season starts Saturday so I will be hopefully done just in time. I'll keep all posted on how everything goes. PS. I got the small problems fixed. Thanks for all the helpfull advice. [/QUOTE]
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