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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 WSM testing results
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<blockquote data-quote="Brent" data-source="post: 26155" data-attributes="member: 99"><p>I just may have to build one too, it would definatly get a McMillan too. I really like how well it does with the 123gn Scenar, sheep, caribou, perfect!! <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>Here's some more detailed data on the loads we tested too.</p><p></p><p>The top loads with the 123gn Scenar and RL25 were unruley as far as psi and velocity goes, ES was 61 fps, psi climbed after just three shots on the 68gn load with not letting it cool much.</p><p>After letting it cool "completely" psi on the last two shots went down. Bolt lift was not stiff on the second and third shot, but we let it cool to see if psi would indeed come down.</p><p></p><p>69gr RL25 123gn Scenar;</p><p></p><p>3503 @ 66,100 psi</p><p>3556 @ 69,4</p><p>3554 @ 69,7</p><p>3535 @ 68,1</p><p>3512 @ 66,8 We let it cool 3-4 minutes between shots to keep psi down on this load.</p><p></p><p></p><p>68gn load;</p><p></p><p>3451 @ 63,200 psi</p><p>3483 @ 64,0</p><p>3512 @ 67,1 (let cool after this)</p><p></p><p>3429 @ 61,9 (cold bbl)</p><p>3432 @ 61,9</p><p></p><p></p><p>The 67gn load below this was fairly stable though.</p><p></p><p>3401 @ 61,3</p><p>3401 @ 60.9</p><p>3398 @ 60,0</p><p>3423 @ 61,6</p><p>3441 @ 63,2</p><p>3435 @ 62,9</p><p></p><p>The 68gn 140 Berger load below was too hot,</p><p></p><p>3203 @ 59,6</p><p>3260 @ 63,9</p><p>3295 @ 66,8 We stopped here, bolt lift was consistantly stiff and getting</p><p>pretty heavy. Very tight group though.</p><p></p><p></p><p>The better load was 67gn below,</p><p></p><p>3228 @ 59,6</p><p>3194 @ 57,0</p><p>3194 @ 57,4</p><p>3199 @ 58,0</p><p>3234 @ 59,6 Slightly stiff bolt lift was felt on 2nd and 3rd shot but not</p><p>any others.</p><p></p><p>66gr were all fine too,</p><p></p><p>3114 @ 55,7</p><p>3158 @ 56,1</p><p>3137 @ 54,4</p><p>3141 @ 55,4</p><p>3121 @ 54,4</p><p></p><p>All these groups were shot using mixed brass though, some he had fireformed and mixed in with a bunch of virgin brass, so ES was not really representative, and neither were groups IMO. I think it has great potential</p><p>if he eliminated some variables. Mirage was pretty bad and wind wasn't helping any either. I think groups could have shrank by half maybe if everything was perfect, we'll see...</p></blockquote><p></p>
[QUOTE="Brent, post: 26155, member: 99"] I just may have to build one too, it would definatly get a McMillan too. I really like how well it does with the 123gn Scenar, sheep, caribou, perfect!! [img]images/icons/smile.gif[/img] Here's some more detailed data on the loads we tested too. The top loads with the 123gn Scenar and RL25 were unruley as far as psi and velocity goes, ES was 61 fps, psi climbed after just three shots on the 68gn load with not letting it cool much. After letting it cool "completely" psi on the last two shots went down. Bolt lift was not stiff on the second and third shot, but we let it cool to see if psi would indeed come down. 69gr RL25 123gn Scenar; 3503 @ 66,100 psi 3556 @ 69,4 3554 @ 69,7 3535 @ 68,1 3512 @ 66,8 We let it cool 3-4 minutes between shots to keep psi down on this load. 68gn load; 3451 @ 63,200 psi 3483 @ 64,0 3512 @ 67,1 (let cool after this) 3429 @ 61,9 (cold bbl) 3432 @ 61,9 The 67gn load below this was fairly stable though. 3401 @ 61,3 3401 @ 60.9 3398 @ 60,0 3423 @ 61,6 3441 @ 63,2 3435 @ 62,9 The 68gn 140 Berger load below was too hot, 3203 @ 59,6 3260 @ 63,9 3295 @ 66,8 We stopped here, bolt lift was consistantly stiff and getting pretty heavy. Very tight group though. The better load was 67gn below, 3228 @ 59,6 3194 @ 57,0 3194 @ 57,4 3199 @ 58,0 3234 @ 59,6 Slightly stiff bolt lift was felt on 2nd and 3rd shot but not any others. 66gr were all fine too, 3114 @ 55,7 3158 @ 56,1 3137 @ 54,4 3141 @ 55,4 3121 @ 54,4 All these groups were shot using mixed brass though, some he had fireformed and mixed in with a bunch of virgin brass, so ES was not really representative, and neither were groups IMO. I think it has great potential if he eliminated some variables. Mirage was pretty bad and wind wasn't helping any either. I think groups could have shrank by half maybe if everything was perfect, we'll see... [/QUOTE]
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6.5 WSM testing results
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