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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: 1160601" data-attributes="member: 2567"><p>Roy,</p><p></p><p>I love my 338 rum and if I had to choose one gun to keep, it would be the ONE. I also shoot a 300 rum, but it just isn't as sexy. I am so happy to actually have confidence in my actual velocity now. Now I have to go through my other loads so that I can update my velocity numbers. Since my purchase of the G-7 rangefinder, it really brings home that good data in equals good data out.</p><p></p><p>My accuracy with the 300 gr Berger is better than I can shoot. I have to admit that holding to 1/4 inch groups isn't my goal with the big 338. One shot DRT kills is what I am after and I have had close to 90% that meet the criteria with the 338 rum and 225 accubonds and now the 300 gr Bergers. My only non confidence builder with the Berger is consistency of penetration. I only had several exits on deer and elk and this years deer blew up 4 inches of spine, but didn't exit and the largest piece of bullet found was about 1/8 inch. That doesn't instill confidence in stopping a charging grizzly if the bullet doesn't penetrate far enough on a frontal shot to inflict massive damage. I know of a person down here that the exact thing happened to after a grizzly attacked him and he shot her with a 200 gr ballistic tip from a 338 win mag. He lived to tell the story, but the bear got some pieces of him and he and his hunting partner finally killed the bear, but I can't help but wonder if more penetration would have dispatched the bear more quickly. From the Bergers that I have recovered, the bullet resembles a ballistic tip.</p><p></p><p>My velocity testing was done inside of my shop where I shot into a 30 inch diameter douglas fir log about 18 inches long. The accubond penetrated over 13 inches, the Berger about 8-9 inches. When I get done with inside testing I will split the log and pull out the bullets. I know this isn't a good expansion or penetration media, but it still gives some data. Last elk season I shot a 300 gr Berger into a live pine tree behind my target when checking my zero after my horse dropped my gun and the bullet only penetrated about 4 inches. I have played with some 225 barnes tipped tripple shocks, but my gun doesn't seem to like them and it also doesn't seem to like 225 hornady interbonds.</p><p></p><p>What I am after right now is being able to have a bullet in the chamber or magazine with the same short range trajectory as my long range 300 gr Berger. So far the drop chart show the 300 gr accubond started 45 fps faster having the same moa dial as the 300 gr Berger out to 1000 yards even though the NAB only has a .720 BC compared to the .818 of the Berger. Now I just need to see if the NAB shoots close to the same zero. Maybe in an hour or two when it warms up a little, I will shoot a few.</p><p></p><p>I also had a friend pick me up a pound of IMR 7977 to give a try and see how it does, it looks like a promising powder.</p></blockquote><p></p>
[QUOTE="D.Camilleri, post: 1160601, member: 2567"] Roy, I love my 338 rum and if I had to choose one gun to keep, it would be the ONE. I also shoot a 300 rum, but it just isn't as sexy. I am so happy to actually have confidence in my actual velocity now. Now I have to go through my other loads so that I can update my velocity numbers. Since my purchase of the G-7 rangefinder, it really brings home that good data in equals good data out. My accuracy with the 300 gr Berger is better than I can shoot. I have to admit that holding to 1/4 inch groups isn't my goal with the big 338. One shot DRT kills is what I am after and I have had close to 90% that meet the criteria with the 338 rum and 225 accubonds and now the 300 gr Bergers. My only non confidence builder with the Berger is consistency of penetration. I only had several exits on deer and elk and this years deer blew up 4 inches of spine, but didn't exit and the largest piece of bullet found was about 1/8 inch. That doesn't instill confidence in stopping a charging grizzly if the bullet doesn't penetrate far enough on a frontal shot to inflict massive damage. I know of a person down here that the exact thing happened to after a grizzly attacked him and he shot her with a 200 gr ballistic tip from a 338 win mag. He lived to tell the story, but the bear got some pieces of him and he and his hunting partner finally killed the bear, but I can't help but wonder if more penetration would have dispatched the bear more quickly. From the Bergers that I have recovered, the bullet resembles a ballistic tip. My velocity testing was done inside of my shop where I shot into a 30 inch diameter douglas fir log about 18 inches long. The accubond penetrated over 13 inches, the Berger about 8-9 inches. When I get done with inside testing I will split the log and pull out the bullets. I know this isn't a good expansion or penetration media, but it still gives some data. Last elk season I shot a 300 gr Berger into a live pine tree behind my target when checking my zero after my horse dropped my gun and the bullet only penetrated about 4 inches. I have played with some 225 barnes tipped tripple shocks, but my gun doesn't seem to like them and it also doesn't seem to like 225 hornady interbonds. What I am after right now is being able to have a bullet in the chamber or magazine with the same short range trajectory as my long range 300 gr Berger. So far the drop chart show the 300 gr accubond started 45 fps faster having the same moa dial as the 300 gr Berger out to 1000 yards even though the NAB only has a .720 BC compared to the .818 of the Berger. Now I just need to see if the NAB shoots close to the same zero. Maybe in an hour or two when it warms up a little, I will shoot a few. I also had a friend pick me up a pound of IMR 7977 to give a try and see how it does, it looks like a promising powder. [/QUOTE]
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338 Rum and 300 gr Bullets
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