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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
handloading
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<blockquote data-quote="HoytemanPA" data-source="post: 22181" data-attributes="member: 286"><p>Nighthawk,</p><p></p><p> I have been working with the 30-378 Mark V since Christmas. Out of the box as is no trigger adjust, nothing. I have found the most accurate loads to date (last Sat)to be 220 grain Matchkings with H50BMG. I am at 2 grains under max listed on Hodgdon's web site for the caliber. At this load in my rifle the brass is showing ejector marks. But as a side note with the first box of factory shells I put through the gun I saw similar marks on three of the 20 cases. This was my first testing with the H50BMG. I had only five rounds each in 1/2 grain increments but at 200 yards this set printed the first 4 at .9 and the overall 5 at 1.5. The previous set at 1/2 grain lighter was only a three shot due to a scope adjust from 180 grain bullets but they mingled right in with the 5 shot for a total of 8 at just under 2 inches. </p><p> I hope this helps. I felt sick after getting mine and then reading that in order for it to shoot I had to have it rebarreled. I am feeling much better now. Will let you know if interested what they will do at double the distance after next weekend. </p><p>HPA</p></blockquote><p></p>
[QUOTE="HoytemanPA, post: 22181, member: 286"] Nighthawk, I have been working with the 30-378 Mark V since Christmas. Out of the box as is no trigger adjust, nothing. I have found the most accurate loads to date (last Sat)to be 220 grain Matchkings with H50BMG. I am at 2 grains under max listed on Hodgdon's web site for the caliber. At this load in my rifle the brass is showing ejector marks. But as a side note with the first box of factory shells I put through the gun I saw similar marks on three of the 20 cases. This was my first testing with the H50BMG. I had only five rounds each in 1/2 grain increments but at 200 yards this set printed the first 4 at .9 and the overall 5 at 1.5. The previous set at 1/2 grain lighter was only a three shot due to a scope adjust from 180 grain bullets but they mingled right in with the 5 shot for a total of 8 at just under 2 inches. I hope this helps. I felt sick after getting mine and then reading that in order for it to shoot I had to have it rebarreled. I am feeling much better now. Will let you know if interested what they will do at double the distance after next weekend. HPA [/QUOTE]
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