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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Kirby's craftsmanship pics
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<blockquote data-quote="goodgrouper" data-source="post: 116724" data-attributes="member: 2852"><p><strong>Re: Kirby\'s craftsmanship pics</strong></p><p></p><p>Here's the pic of two days worth of load development:</p><p> <img src="http://img.photobucket.com/albums/v358/goodgrouper/blloadd.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>The numbers are as follows:</p><p>(All RL22 with 140 grain Berger Vld's jammed .020" into the riflings)</p><p> <font color="blue"> Day 1 </font> </p><p>rw 1 51.5 grains, left page target 4</p><p>es 43</p><p>av 2871</p><p>sd 23</p><p></p><p>rw 2 52.0 grains, left page sighter</p><p>es 45</p><p>av 2934</p><p>sd 22</p><p></p><p>row 3 52.5 grains, left page target 1</p><p>es 16</p><p>av 2965</p><p>sd 8</p><p> <font color="orange">LOW END SWEET SPOT </font> </p><p></p><p>row 4 53.0 grains, left page target 2</p><p>es 30</p><p>av 2988</p><p>sd 15</p><p></p><p>row 5 53.5 grains, left page target 3</p><p>es 33</p><p>av 3023</p><p>sd 18</p><p></p><p>row 6 54.0 grains, left page target 5</p><p>es 35</p><p>av 3047</p><p>sd 19</p><p></p><p></p><p> <font color="red">Day 2 </font> </p><p>All RL 22 and 140 berger jammed</p><p></p><p>Row 7 (repeat of row 6) 54.0 grains right page sighter</p><p>repeated this charge because two bullets were same speed and one jumped way up so we wanted to see if it was a fluke. On day two it did the same thing, two at same speed and one jumped way up. Average velo went up a touch but sd was almost identical.</p><p>es 37</p><p>av 3052</p><p>sd 18</p><p></p><p>Rw 8 54.5 grains, right page target 1</p><p>es 23 </p><p>av 3070</p><p>sd 11</p><p></p><p>Rw 9 55.0 grains, right page target 2</p><p>es 6</p><p>av 3103</p><p>sd 3 </p><p> <font color="orange">HIGH END SWEET SPOT </font> </p><p></p><p>Rw 10 55.5 grains, right page target 3</p><p>es 13</p><p>av 3136</p><p>sd 6</p><p>(I flubbed the shot that went low and left)</p><p></p><p>Rw 11 repeat low end sweet spot of 52.5 grains, right page target 4</p><p>es 16</p><p>av 2981</p><p>sd 8</p><p>Sweet spot low end was identical numbers/perfect repeat and if you look at the groups, they look identical in shape and size. Velo went up a touch probably because of a fouled barrel.</p><p></p><p></p><p>All loads shot in breezy conditions without wind flags. Temp was 60 and before sunrise. No mirage.</p><p></p><p>Out of eleven loads, the biggest measures .755" and smallest goes .197". Average is probably in the low .3's!</p><p></p><p>This gun is a shooter. Now to test the high end sweet spot and low end sweet spot at 700 and 1000 yards. Details coming soon...... /ubbthreads/images/graemlins/wink.gif</p></blockquote><p></p>
[QUOTE="goodgrouper, post: 116724, member: 2852"] [b]Re: Kirby\'s craftsmanship pics[/b] Here's the pic of two days worth of load development: [img]http://img.photobucket.com/albums/v358/goodgrouper/blloadd.jpg[/img] The numbers are as follows: (All RL22 with 140 grain Berger Vld's jammed .020" into the riflings) <font color="blue"> Day 1 </font> rw 1 51.5 grains, left page target 4 es 43 av 2871 sd 23 rw 2 52.0 grains, left page sighter es 45 av 2934 sd 22 row 3 52.5 grains, left page target 1 es 16 av 2965 sd 8 <font color="orange">LOW END SWEET SPOT </font> row 4 53.0 grains, left page target 2 es 30 av 2988 sd 15 row 5 53.5 grains, left page target 3 es 33 av 3023 sd 18 row 6 54.0 grains, left page target 5 es 35 av 3047 sd 19 <font color="red">Day 2 </font> All RL 22 and 140 berger jammed Row 7 (repeat of row 6) 54.0 grains right page sighter repeated this charge because two bullets were same speed and one jumped way up so we wanted to see if it was a fluke. On day two it did the same thing, two at same speed and one jumped way up. Average velo went up a touch but sd was almost identical. es 37 av 3052 sd 18 Rw 8 54.5 grains, right page target 1 es 23 av 3070 sd 11 Rw 9 55.0 grains, right page target 2 es 6 av 3103 sd 3 <font color="orange">HIGH END SWEET SPOT </font> Rw 10 55.5 grains, right page target 3 es 13 av 3136 sd 6 (I flubbed the shot that went low and left) Rw 11 repeat low end sweet spot of 52.5 grains, right page target 4 es 16 av 2981 sd 8 Sweet spot low end was identical numbers/perfect repeat and if you look at the groups, they look identical in shape and size. Velo went up a touch probably because of a fouled barrel. All loads shot in breezy conditions without wind flags. Temp was 60 and before sunrise. No mirage. Out of eleven loads, the biggest measures .755" and smallest goes .197". Average is probably in the low .3's! This gun is a shooter. Now to test the high end sweet spot and low end sweet spot at 700 and 1000 yards. Details coming soon...... [img]/ubbthreads/images/graemlins/wink.gif[/img] [/QUOTE]
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