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JE Custom and Lone Wolf 30-338 Lapua Improved Weatherby Mark V
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<blockquote data-quote="Autorotate" data-source="post: 527782" data-attributes="member: 8073"><p>I'm not familiar with the "TN" approach, forgive my ignorance.</p><p></p><p>I did use the Cream of Wheat and Pistol powder on another rifle, but could never get out of my mind, the thought of "muffin" debris in my pristine uber precise custom barrel.....my time is precious, probably like many shooters, so I've come to developing a load with my first batch of virgin brass cases, and enjoying/learning the rifle by shooting during fireforming.</p><p></p><p>103 grains is what I use now with the 210 Berger. I'm ashamed to admit it...but the Lapua case has allowed 108 grains of Retumbo under a 210 VLKD to be fired with no classic visible/tactile signs of pressure. I won't post the velocity. Again I post that, out of shock/shame, and the hope it saves someone from doing something dumb. Some smart folks on this board, pointed me to completing a "pressure ladder" using Norma brass loaded (still consistent, but just softer/not as tough as Lapua) in one grain increments until pressure signs were evident. This would enable me to get in the ballpark for final load development with the Lapua brass, as it is so tough...it might be easy to get into pressure trouble, and not even know it, especially with a very concentric chamber.</p><p></p><p>H1000 and the 200 NAB work well together in this round so far as well. gun)</p><p></p><p>I just got a box of the Hornday 225 grainers with what looks to be a .351 G7 BC...anxious to see how they shoot. I'd like to try the new Viht N570 with that bullet in this chamber, but I haven't cracked the code on obtaining "botique" powders like that here yet. Yet. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>So you've got a bunch of great bullets for LRH to pick from..200 NAB, 208 AMAX, 210 VLD, 225 Hornday (not sure that's a proven hunting bullet yet)...<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /></p></blockquote><p></p>
[QUOTE="Autorotate, post: 527782, member: 8073"] I'm not familiar with the "TN" approach, forgive my ignorance. I did use the Cream of Wheat and Pistol powder on another rifle, but could never get out of my mind, the thought of "muffin" debris in my pristine uber precise custom barrel.....my time is precious, probably like many shooters, so I've come to developing a load with my first batch of virgin brass cases, and enjoying/learning the rifle by shooting during fireforming. 103 grains is what I use now with the 210 Berger. I'm ashamed to admit it...but the Lapua case has allowed 108 grains of Retumbo under a 210 VLKD to be fired with no classic visible/tactile signs of pressure. I won't post the velocity. Again I post that, out of shock/shame, and the hope it saves someone from doing something dumb. Some smart folks on this board, pointed me to completing a "pressure ladder" using Norma brass loaded (still consistent, but just softer/not as tough as Lapua) in one grain increments until pressure signs were evident. This would enable me to get in the ballpark for final load development with the Lapua brass, as it is so tough...it might be easy to get into pressure trouble, and not even know it, especially with a very concentric chamber. H1000 and the 200 NAB work well together in this round so far as well. gun) I just got a box of the Hornday 225 grainers with what looks to be a .351 G7 BC...anxious to see how they shoot. I'd like to try the new Viht N570 with that bullet in this chamber, but I haven't cracked the code on obtaining "botique" powders like that here yet. Yet. :D So you've got a bunch of great bullets for LRH to pick from..200 NAB, 208 AMAX, 210 VLD, 225 Hornday (not sure that's a proven hunting bullet yet)...:cool: [/QUOTE]
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JE Custom and Lone Wolf 30-338 Lapua Improved Weatherby Mark V
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