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Rifles, Reloading, Optics, Equipment
Reloading
.264WM/140 VLD Load Development (M70)
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<blockquote data-quote="benchracer" data-source="post: 1072937" data-attributes="member: 22069"><p>For reference purposes, I am posting the QL predictions for RL-33, along with the velocity runup I performed to verify the QL data. The discrepancy between predicted and actual was much smaller for RL-33 than for Retumbo. I performed this velocity runup with new brass, as well, so I would expect actual velocities in fireformed brass to be somewhat higher. During load development, I encountered ejector marks just below 79 grains with once-fired brass.</p><p> </p><p>QL information regarding load density with RL-33 is way off. QL shows RL-33 as having a lower load density than Retumbo, when it is, in fact, much coarser grained and takes up a LOT more room in the case than Retumbo does.</p><p> </p><p>Again, the relevant OBT node appears at 1.330ms.</p><p> </p><p>At any rate, this combination shot very poorly in my rifle. I suspect that RL-33 may need a hotter primer or heavier bullets to come into its own. When my 8 twist .264 WM is ready, I intend to explore RL-33 further.</p><p> </p><p>66.0 2663</p><p>67.0 2686</p><p>68.0 2705</p><p>69.0 2765</p><p>70.0 2783</p><p>71.0 2826</p><p>72.0 2925</p><p>73.0 2948</p><p>74.0 3004</p><p>75.0 3059</p><p>76.0 3103</p><p>77.0 3134</p><p>78.0 3223</p></blockquote><p></p>
[QUOTE="benchracer, post: 1072937, member: 22069"] For reference purposes, I am posting the QL predictions for RL-33, along with the velocity runup I performed to verify the QL data. The discrepancy between predicted and actual was much smaller for RL-33 than for Retumbo. I performed this velocity runup with new brass, as well, so I would expect actual velocities in fireformed brass to be somewhat higher. During load development, I encountered ejector marks just below 79 grains with once-fired brass. QL information regarding load density with RL-33 is way off. QL shows RL-33 as having a lower load density than Retumbo, when it is, in fact, much coarser grained and takes up a LOT more room in the case than Retumbo does. Again, the relevant OBT node appears at 1.330ms. At any rate, this combination shot very poorly in my rifle. I suspect that RL-33 may need a hotter primer or heavier bullets to come into its own. When my 8 twist .264 WM is ready, I intend to explore RL-33 further. 66.0 2663 67.0 2686 68.0 2705 69.0 2765 70.0 2783 71.0 2826 72.0 2925 73.0 2948 74.0 3004 75.0 3059 76.0 3103 77.0 3134 78.0 3223 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
.264WM/140 VLD Load Development (M70)
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