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Rifles, Reloading, Optics, Equipment
Reloading
Hammer Hunter Load Data, (See page 1, Post 8)
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<blockquote data-quote="Quintus" data-source="post: 2450667" data-attributes="member: 67552"><p>I have been working up the 6.5 RPM with 121HH and RL26 with Federal 215M. Wasn't real sure where to start so went low at 61.0 Grains and finally found pressure at 68.0 grains with a fain extractor mark and 68.5 with a shiner. Primers never flattened out and no heavy bolt lift. I suspect this brass is just a little soft. velocity started at 3115 and topped out 3548. Speed increments were very even and predictable as the charge increased. They were also repeatable. I was hoping to reach 3500FPS with useable accuracy in the 3450 neighborhood. I loaded 3 rounds for the following</p><p>66.0 3367-3375</p><p>66.5 3420-3425</p><p>67.0 3459-3463</p><p>These were measured over a magneto speed sporter. Shooting time temps in the mid 30s. This is all still pretty meaningless. my barrel only has 90 rounds down it and it has all been new brass. I will shoot the next 10 and prep that 100 and play with this some more when it gets into the 40s and 50s, but I am pretty optimistic. The few groups I have shot without the magneto attached have been very very good considering who the nut behind the bolt is.</p></blockquote><p></p>
[QUOTE="Quintus, post: 2450667, member: 67552"] I have been working up the 6.5 RPM with 121HH and RL26 with Federal 215M. Wasn't real sure where to start so went low at 61.0 Grains and finally found pressure at 68.0 grains with a fain extractor mark and 68.5 with a shiner. Primers never flattened out and no heavy bolt lift. I suspect this brass is just a little soft. velocity started at 3115 and topped out 3548. Speed increments were very even and predictable as the charge increased. They were also repeatable. I was hoping to reach 3500FPS with useable accuracy in the 3450 neighborhood. I loaded 3 rounds for the following 66.0 3367-3375 66.5 3420-3425 67.0 3459-3463 These were measured over a magneto speed sporter. Shooting time temps in the mid 30s. This is all still pretty meaningless. my barrel only has 90 rounds down it and it has all been new brass. I will shoot the next 10 and prep that 100 and play with this some more when it gets into the 40s and 50s, but I am pretty optimistic. The few groups I have shot without the magneto attached have been very very good considering who the nut behind the bolt is. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Hammer Hunter Load Data, (See page 1, Post 8)
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