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Nosler 190 ABLR
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<blockquote data-quote="A A Ron" data-source="post: 2098415" data-attributes="member: 117277"><p>I appreciate you all sharing your wisdom and experience. </p><p></p><p>I started from scratch with my load development to be sure I didn't miss anything. Whether it was an inaccurate measurement the first time or the throat has already moved back .005 already I don't know, but the measurement is different. That measurement difference was significant during my test. </p><p></p><p>Also, due to the component shortage right now, I changed powder and primer. I have 10 lbs of IMR 4064 that I don't use since I haven't shot NRA HI Power in 10 plus years. It is going to be my test powder to isolate seating depth. Not optimal for a 190, but it is better than throwing rocks. Once I know the seating depth ball park I will go back to Reloader 23 to fine tune the load. It shouldn't be surprising, but IMR 4064 shot the best groups so far. Although they are slow at an average of 2612 fps. The std dev was also high at 33fps for 33 shots.</p><p> </p><p>These are the results based on a small sample size. (3 shot groups don't tell you what you have, they tell you what you don't have.)</p><p></p><p>.050 - 1.5 moa</p><p>.060 - 1.8 moa</p><p>.070 - 1.25 moa (coal is 3.338" almost Saami)</p><p>.080 - 1.25 moa</p><p>.090 - .75 moa</p><p>.100 - 1.75 moa ( I called a flyer, but included it.)</p><p>.110 - .68 moa</p><p>.120 - 1.75 moa</p><p>.130 - .5 moa</p><p>.140- .25 moa</p><p>.150 - 1.75 moa</p><p></p><p>For my purposes I know what lengths don't work. I also have some hope for the 190 ABLR in my rifle. It seems like there are multiple accuracy nodes at different seating depths, but the nodes are in narrow windows. The widest being between .130 and .140. I have a few directions to test further. </p><p> </p><p>Muddy boots was correct I should have started at .340 coal. In my rifle that is .072" off. [ATTACH=full]246717[/ATTACH]The Nosler rep was right that I missed nodes using the Berger method on a Nosler bullet. <img class="smilie smilie--emoji" loading="lazy" alt="🙂" title="Slightly smiling face :slight_smile:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" data-shortname=":slight_smile:" /> Yet, the best groups are a lot deeper than .100 so far.</p></blockquote><p></p>
[QUOTE="A A Ron, post: 2098415, member: 117277"] I appreciate you all sharing your wisdom and experience. I started from scratch with my load development to be sure I didn't miss anything. Whether it was an inaccurate measurement the first time or the throat has already moved back .005 already I don't know, but the measurement is different. That measurement difference was significant during my test. Also, due to the component shortage right now, I changed powder and primer. I have 10 lbs of IMR 4064 that I don't use since I haven't shot NRA HI Power in 10 plus years. It is going to be my test powder to isolate seating depth. Not optimal for a 190, but it is better than throwing rocks. Once I know the seating depth ball park I will go back to Reloader 23 to fine tune the load. It shouldn't be surprising, but IMR 4064 shot the best groups so far. Although they are slow at an average of 2612 fps. The std dev was also high at 33fps for 33 shots. These are the results based on a small sample size. (3 shot groups don't tell you what you have, they tell you what you don't have.) .050 - 1.5 moa .060 - 1.8 moa .070 - 1.25 moa (coal is 3.338" almost Saami) .080 - 1.25 moa .090 - .75 moa .100 - 1.75 moa ( I called a flyer, but included it.) .110 - .68 moa .120 - 1.75 moa .130 - .5 moa .140- .25 moa .150 - 1.75 moa For my purposes I know what lengths don't work. I also have some hope for the 190 ABLR in my rifle. It seems like there are multiple accuracy nodes at different seating depths, but the nodes are in narrow windows. The widest being between .130 and .140. I have a few directions to test further. Muddy boots was correct I should have started at .340 coal. In my rifle that is .072" off. [ATTACH type="full"]246717[/ATTACH]The Nosler rep was right that I missed nodes using the Berger method on a Nosler bullet. 🙂 Yet, the best groups are a lot deeper than .100 so far. [/QUOTE]
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