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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Rum and 300 gr Bullets
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<blockquote data-quote="D.Camilleri" data-source="post: 1160434" data-attributes="member: 2567"><p>I recently bought a new Magneto Speed Sportsman chrono and finally got a chance to try it out today. My go to load for my 338 rum has been 300 gr Berger OTM in front of 90 gr of H-1000. I adjusted my velocity to 2775 to make my drops match my ballistics and it has worked well. Neither my pro chrono or chony F-1 chrono gave me that velocity though. I set my loads to a COAL of 3.670. Today my first shot through the Magneto Speed yielded 2774, cool!</p><p></p><p>My next test loads were one round with a berger 300 gr OTM in front of 101 grs of RL33. It yielded a velocity of 2781. This is a pretty heavily compressed load and it isn't worth the trouble to try and get more powder in.</p><p></p><p>My next load was a 300 gr accubond in front of 100 grains of RL33 with a COAL of 3.670. It yielded a velocity of 2821 with no visible pressure signs. I might try 101 grs with this bullet, and then check the groups. The added velocity of this load helps the NAB keep up with the higher BC of the berger out to 350 yards and then the berger is only slightly better a keeping the same dial in for moa on drop.</p><p></p><p>I feel a little better about having the accubond in the chamber when I am hunting in Grizzly country and might have to defend myself.</p></blockquote><p></p>
[QUOTE="D.Camilleri, post: 1160434, member: 2567"] I recently bought a new Magneto Speed Sportsman chrono and finally got a chance to try it out today. My go to load for my 338 rum has been 300 gr Berger OTM in front of 90 gr of H-1000. I adjusted my velocity to 2775 to make my drops match my ballistics and it has worked well. Neither my pro chrono or chony F-1 chrono gave me that velocity though. I set my loads to a COAL of 3.670. Today my first shot through the Magneto Speed yielded 2774, cool! My next test loads were one round with a berger 300 gr OTM in front of 101 grs of RL33. It yielded a velocity of 2781. This is a pretty heavily compressed load and it isn't worth the trouble to try and get more powder in. My next load was a 300 gr accubond in front of 100 grains of RL33 with a COAL of 3.670. It yielded a velocity of 2821 with no visible pressure signs. I might try 101 grs with this bullet, and then check the groups. The added velocity of this load helps the NAB keep up with the higher BC of the berger out to 350 yards and then the berger is only slightly better a keeping the same dial in for moa on drop. I feel a little better about having the accubond in the chamber when I am hunting in Grizzly country and might have to defend myself. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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338 Rum and 300 gr Bullets
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