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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Berger .338 300 grain EH - ballistic coefficient
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<blockquote data-quote="D.Camilleri" data-source="post: 1172517" data-attributes="member: 2567"><p>Timber,</p><p></p><p>I am intrigued by this thread. My go to load has been with H-1000 and the 300 gr Berger OTM, terminal results have been excellent with kills as follows, bull elk 550, 750, mule deer 760, 486, cow elk, 700, 520. I probably am not as careful as you, because I doubt I would worry about 4 inches at 1000 for elk hunting. What I would do though is shoot your same load at 1200 and see the results, if the velocity is indeed off, it will be amplified.</p><p></p><p>Just curious, have you tried loading up hotter with the reloader 33? I am working on a rl33 load right now using the 300 gr accubond loaded to magazine length. I have over .100 jump to the lands, but so do my bergers. I have loaded up 100 gr of rl33 with OAL of 3.670 and have recorded 2820 fps with the accubond and no visible pressure signs. I have a batch of 101 grs loaded to test. The accubond has a longer bearing surface than the berger and creates more pressure. I am compressing powder quite a bit at 101 but I want to see how it shoots. The accubond has a much different ogive measurement than the berger. I tried loading the accubond short to match the ogive dimension of the berger with 90 grs of h-1000 and stuck my bolt. So changing the OAL is huge in pressure changes. Being .010 off the lands, you will no doubt have much higher pressure due to the lack of free bore. I had also loaded some bergers with 101 grs of rl33, but I didn't have the magneto speed and my chrono decided to not work while I was testing the loads. </p><p></p><p>Another question, have you verified the kestrel on the days you are shooting? A pressure reading that is off just slightly can make a big difference in trajectory at long range. I have been using my G7 range finder and while I think it works well, I don't think the temp reading is super accurate and the elevation is close, but not perfect, so it leads me to wonder if input data through no fault of yours is to blame.</p></blockquote><p></p>
[QUOTE="D.Camilleri, post: 1172517, member: 2567"] Timber, I am intrigued by this thread. My go to load has been with H-1000 and the 300 gr Berger OTM, terminal results have been excellent with kills as follows, bull elk 550, 750, mule deer 760, 486, cow elk, 700, 520. I probably am not as careful as you, because I doubt I would worry about 4 inches at 1000 for elk hunting. What I would do though is shoot your same load at 1200 and see the results, if the velocity is indeed off, it will be amplified. Just curious, have you tried loading up hotter with the reloader 33? I am working on a rl33 load right now using the 300 gr accubond loaded to magazine length. I have over .100 jump to the lands, but so do my bergers. I have loaded up 100 gr of rl33 with OAL of 3.670 and have recorded 2820 fps with the accubond and no visible pressure signs. I have a batch of 101 grs loaded to test. The accubond has a longer bearing surface than the berger and creates more pressure. I am compressing powder quite a bit at 101 but I want to see how it shoots. The accubond has a much different ogive measurement than the berger. I tried loading the accubond short to match the ogive dimension of the berger with 90 grs of h-1000 and stuck my bolt. So changing the OAL is huge in pressure changes. Being .010 off the lands, you will no doubt have much higher pressure due to the lack of free bore. I had also loaded some bergers with 101 grs of rl33, but I didn't have the magneto speed and my chrono decided to not work while I was testing the loads. Another question, have you verified the kestrel on the days you are shooting? A pressure reading that is off just slightly can make a big difference in trajectory at long range. I have been using my G7 range finder and while I think it works well, I don't think the temp reading is super accurate and the elevation is close, but not perfect, so it leads me to wonder if input data through no fault of yours is to blame. [/QUOTE]
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Berger .338 300 grain EH - ballistic coefficient
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