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<blockquote data-quote="Long Time Long Ranger" data-source="post: 519808" data-attributes="member: 505"><p>Depends on custom or over the counter. Standard magnum action or big action for Lapua or 378 case. Heavy long range rig or lighter carry rifle.</p><p> </p><p>The first three 338 Lapua, 338-300 RUM and 338 RUM are the same thing performance wise and no difference hunting with them at any range. All three are going to get best accuracy with a 300 grain bullet between 2750 and 2850 fps. There is the oddball slower or faster. Go with the 338 RUM because it is cheaper to shoot with cheaper easily available components. It is the best fit on a standard magnum action. It does well in shorter barrel lighter rifles for carry rifles along with the 338 Norma. The Lapua and Norma which is a shortenned imp lapua requires a larger more expensive action.</p><p> </p><p>If you go to a custom heavy long range rifle or a larger more expensive action then 338's off the 378 wby case and the Excalibur case are the best option because of the 200+ fps gain in velocity which comes in handy over 1000 yards. Some of the improved Lapua designs do well and can come in near 3000 fps with a 30" barrel and pushing the good Lapua brass hot. But they are still behind the Excalibur and 338-378 wby improved versions. The 416 rigby case improved was good for many years but with Jamison making good brass now that is easily available for the Excalibur it is the best option with more powder capacity. It is the most powder capacity and fastest without going to the heavy chey-tac action. In other words the fastest that can be done in a carry weight hunting rifle.</p><p> </p><p>The big 30's are hard on barrels. I sold my 30-378's because of this. I have three 300 RUM's I do some long range with and they are very good but not nearly the barrel life of the 338's. The 300 RUM and the 30-338 Lapua imp are excellent long range rigs and the biggest in 30 cal you can get any kind of barrel life with.</p><p> </p><p>Over the counter the most power you can get is probably the 338-378 wby. I have seven of them and it is my go to long range rifle shooting the 300 smk at 3064 fps out of a 28" barrel. I have shot these for many years and all mine are wildcats done before wby brought them out as standard cartridges. If I were doing a long range 338 now it would be the 338 Excalibur improved. I have been talking to Kirby Allen on this site about doing one of those to replace my aging fleet of 338-378's. </p><p> </p><p>I am going with that one and I just got my new 338 SIN which weighs a little over six pounds and comes in about 60 fps shy of the 338 Lapua, 338-300 RUM and 338 RUM. I am shooting the 225 grain CE bullet with .640 bc at 3170 fps out of a 24" barrel. It fits easily on a standard magnum action and does well in short barrels for light gun builds. The ballistics to 1000 yards with this combo are very good for a light rifle.</p></blockquote><p></p>
[QUOTE="Long Time Long Ranger, post: 519808, member: 505"] Depends on custom or over the counter. Standard magnum action or big action for Lapua or 378 case. Heavy long range rig or lighter carry rifle. The first three 338 Lapua, 338-300 RUM and 338 RUM are the same thing performance wise and no difference hunting with them at any range. All three are going to get best accuracy with a 300 grain bullet between 2750 and 2850 fps. There is the oddball slower or faster. Go with the 338 RUM because it is cheaper to shoot with cheaper easily available components. It is the best fit on a standard magnum action. It does well in shorter barrel lighter rifles for carry rifles along with the 338 Norma. The Lapua and Norma which is a shortenned imp lapua requires a larger more expensive action. If you go to a custom heavy long range rifle or a larger more expensive action then 338's off the 378 wby case and the Excalibur case are the best option because of the 200+ fps gain in velocity which comes in handy over 1000 yards. Some of the improved Lapua designs do well and can come in near 3000 fps with a 30" barrel and pushing the good Lapua brass hot. But they are still behind the Excalibur and 338-378 wby improved versions. The 416 rigby case improved was good for many years but with Jamison making good brass now that is easily available for the Excalibur it is the best option with more powder capacity. It is the most powder capacity and fastest without going to the heavy chey-tac action. In other words the fastest that can be done in a carry weight hunting rifle. The big 30's are hard on barrels. I sold my 30-378's because of this. I have three 300 RUM's I do some long range with and they are very good but not nearly the barrel life of the 338's. The 300 RUM and the 30-338 Lapua imp are excellent long range rigs and the biggest in 30 cal you can get any kind of barrel life with. Over the counter the most power you can get is probably the 338-378 wby. I have seven of them and it is my go to long range rifle shooting the 300 smk at 3064 fps out of a 28" barrel. I have shot these for many years and all mine are wildcats done before wby brought them out as standard cartridges. If I were doing a long range 338 now it would be the 338 Excalibur improved. I have been talking to Kirby Allen on this site about doing one of those to replace my aging fleet of 338-378's. I am going with that one and I just got my new 338 SIN which weighs a little over six pounds and comes in about 60 fps shy of the 338 Lapua, 338-300 RUM and 338 RUM. I am shooting the 225 grain CE bullet with .640 bc at 3170 fps out of a 24" barrel. It fits easily on a standard magnum action and does well in short barrels for light gun builds. The ballistics to 1000 yards with this combo are very good for a light rifle. [/QUOTE]
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