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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Preliminary results LOST RIVER 162 Gr 7 MM J40 Ballistics
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<blockquote data-quote="daveosok" data-source="post: 24066"><p>I understand what your saying. Have you seen how long these LRBT are? Seating it deeper in the case would put a lenghty amount inside the case. This may lead to overpressure signs ealier than if it were seated out further.</p><p></p><p>Bounty Hunter</p><p>I understand what your saying also. That is the way I did the Berger 180 VLD, BUT I was able to find loading data for them.</p><p>These LRBT have long shank lengths so using data for 162 grain can be dangerous.</p><p>I cannot find any loading data for these LRBT bullets, so I had to start from scratch using load data for 162 grain standard style jacketed bullets minus 15% of the standard load.</p><p>The other issue is I can buy 100 Berger 180 VLD bullets for 21 dollars, LRBT are 14.60 for 20.</p><p>Accurate reloading lists load data for the 162 gr AMAX.</p><p>72 grains of RL-22 to 78.5 max.</p><p>Using your suggestion for .2 grain increments is 32.5 different testing loads.</p><p>I would need 33 bullets for this one powder.</p><p>I used 7 and still have powders I havent used.</p><p>I would need 231 LRBT to perform tests to find the perfect load that my rifle likes.</p><p>168 dollars worth of bullets.</p><p>I could get around 800 bergers for that price.</p><p>I did seven loads and found two likely candidates for further testing. I will use the .2 grain increments then on the ones that showed possible promise of better accuracy.</p><p>See what I'm talking about now when these LRBT are concerned. If I had money laying around of course I would order 500 of these bullets and spend ample time to finding the best accuracy loads.</p><p>As it sits now, with no loading data available, starting from scratch is the only way I can go. I understand what you said about "Most of the time we have a good idea which powder and bullet we want/think will work well to use anyway. " in this case with no load data available and shank length being so long using data for standard 162 needed to be started at much lower load weight.</p></blockquote><p></p>
[QUOTE="daveosok, post: 24066"] I understand what your saying. Have you seen how long these LRBT are? Seating it deeper in the case would put a lenghty amount inside the case. This may lead to overpressure signs ealier than if it were seated out further. Bounty Hunter I understand what your saying also. That is the way I did the Berger 180 VLD, BUT I was able to find loading data for them. These LRBT have long shank lengths so using data for 162 grain can be dangerous. I cannot find any loading data for these LRBT bullets, so I had to start from scratch using load data for 162 grain standard style jacketed bullets minus 15% of the standard load. The other issue is I can buy 100 Berger 180 VLD bullets for 21 dollars, LRBT are 14.60 for 20. Accurate reloading lists load data for the 162 gr AMAX. 72 grains of RL-22 to 78.5 max. Using your suggestion for .2 grain increments is 32.5 different testing loads. I would need 33 bullets for this one powder. I used 7 and still have powders I havent used. I would need 231 LRBT to perform tests to find the perfect load that my rifle likes. 168 dollars worth of bullets. I could get around 800 bergers for that price. I did seven loads and found two likely candidates for further testing. I will use the .2 grain increments then on the ones that showed possible promise of better accuracy. See what I'm talking about now when these LRBT are concerned. If I had money laying around of course I would order 500 of these bullets and spend ample time to finding the best accuracy loads. As it sits now, with no loading data available, starting from scratch is the only way I can go. I understand what you said about "Most of the time we have a good idea which powder and bullet we want/think will work well to use anyway. " in this case with no load data available and shank length being so long using data for standard 162 needed to be started at much lower load weight. [/QUOTE]
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Preliminary results LOST RIVER 162 Gr 7 MM J40 Ballistics
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