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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Drop in Velocity?
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<blockquote data-quote="bcraft1111" data-source="post: 60024" data-attributes="member: 3580"><p>Fiftydriver, Thanks for info</p><p></p><p>When you say the case tolerances are to loose do you mean in case weight. </p><p></p><p>You are correct about the Moly coated bullets. My first shots after cleaning the barrel were 2 inches high every time and then they would come down to the point of aim after 3 or 4 shots this always bothered me.</p><p></p><p>While we are talking new barrel, I spoke with Gary Schneider today who made the original barrell on the gun and he said that the #5 barrel I have on the gun may be " a little whippy" he sugested that if I did not mind the weight on my gun He would put the largest barrel the Mcmillian stock would hold. He also suggested shooting the non coated bullets.He thought that may be a problem with the 1moa groups.</p><p></p><p>I found some 180 Accubonds today but no Retumbo.</p><p>I also have no load data for the retumbo. But here is what I do have </p><p>Max Load data from Lazzeroni </p><p>180 Grain Nosler Partition 3.600 O.A.L. @ 70ºF</p><p></p><p>DuPont Min Max F.P.S. P.S.I.</p><p>IMR 7828 90GR 98.5GR 3464 66,100</p><p>Alliant</p><p>Reloader 25 94GR 104GR 3560 66,400</p><p>Accurate</p><p>8700 108GR 118GR 3481 66,700</p><p></p><p>Can anyone use this to give me a starting point for Retumbo</p><p></p><p>As far as the aol for that load If I use a fired case and tighten up the neck and insert the case in the chamber I come up with 3.760 with the accubond but I dont think any aol over about 3.650 will fit in the mag.</p><p></p><p>The rifle has a break. I shot it the 1st 300 rounds without the break screwed on because I thought it would affect the accuraacy. Then I shot it with the break and you do not have to wory about me shooting without the break anymore.WHAT A DIFFERENCE A BREAK MAKES. Do not get me wrong when I say it shoots 1moa I have shot 3 shot groups with it less than 1/2 moa and my best group is less than 1/2 inch at 300 yards but the next group will be 3 inches at 300 yards. It just does not seem to be consistant.Maby it is the Coated X bullet.</p><p></p><p>Again thanks for taking the time to help me with my problem.</p><p></p><p>PS. If I deside to keep the warbird do you have a reamer to chamber the rifle.</p></blockquote><p></p>
[QUOTE="bcraft1111, post: 60024, member: 3580"] Fiftydriver, Thanks for info When you say the case tolerances are to loose do you mean in case weight. You are correct about the Moly coated bullets. My first shots after cleaning the barrel were 2 inches high every time and then they would come down to the point of aim after 3 or 4 shots this always bothered me. While we are talking new barrel, I spoke with Gary Schneider today who made the original barrell on the gun and he said that the #5 barrel I have on the gun may be " a little whippy" he sugested that if I did not mind the weight on my gun He would put the largest barrel the Mcmillian stock would hold. He also suggested shooting the non coated bullets.He thought that may be a problem with the 1moa groups. I found some 180 Accubonds today but no Retumbo. I also have no load data for the retumbo. But here is what I do have Max Load data from Lazzeroni 180 Grain Nosler Partition 3.600 O.A.L. @ 70ºF DuPont Min Max F.P.S. P.S.I. IMR 7828 90GR 98.5GR 3464 66,100 Alliant Reloader 25 94GR 104GR 3560 66,400 Accurate 8700 108GR 118GR 3481 66,700 Can anyone use this to give me a starting point for Retumbo As far as the aol for that load If I use a fired case and tighten up the neck and insert the case in the chamber I come up with 3.760 with the accubond but I dont think any aol over about 3.650 will fit in the mag. The rifle has a break. I shot it the 1st 300 rounds without the break screwed on because I thought it would affect the accuraacy. Then I shot it with the break and you do not have to wory about me shooting without the break anymore.WHAT A DIFFERENCE A BREAK MAKES. Do not get me wrong when I say it shoots 1moa I have shot 3 shot groups with it less than 1/2 moa and my best group is less than 1/2 inch at 300 yards but the next group will be 3 inches at 300 yards. It just does not seem to be consistant.Maby it is the Coated X bullet. Again thanks for taking the time to help me with my problem. PS. If I deside to keep the warbird do you have a reamer to chamber the rifle. [/QUOTE]
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