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Rifles, Reloading, Optics, Equipment
Reloading
300 Win Mag Build and Loading Questions.
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<blockquote data-quote="Bart B" data-source="post: 1150216" data-attributes="member: 5302"><p>I don't think the twist rate's the problem.</p><p></p><p>My .30-.338 Keele with a 1:12 twist Kreiger shoots bullets 50 to 100 fps slower that a .300 Win Mag. The 15-shot test groups at 1000 with both 190 and 200 Sierra Match Kings were barely under 5 inches as measured in the pits. Shot a 190 then a 200 to kind of get an idea what each would do with at last 25 shots through the barrel. 190's shot with once fired full length sized cases; 200's with new cases. Did not hold off for any wind correction. Inner X ring's 10 inches diameter.</p><p></p><p><img src="http://i735.photobucket.com/albums/ww351/BartBob/30at1000.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>And Sierra 190's leaving my 24" Garand barrel with a 7.62 NATO chamber leaving at 2550 to 2600 fps from its 1:12 twist barrel shot almost as good. About 10 to 12 inch test groups with a 4.6 pound trigger and more parts having to go back into battery the same for each shot aiming with a post front sight.</p></blockquote><p></p>
[QUOTE="Bart B, post: 1150216, member: 5302"] I don't think the twist rate's the problem. My .30-.338 Keele with a 1:12 twist Kreiger shoots bullets 50 to 100 fps slower that a .300 Win Mag. The 15-shot test groups at 1000 with both 190 and 200 Sierra Match Kings were barely under 5 inches as measured in the pits. Shot a 190 then a 200 to kind of get an idea what each would do with at last 25 shots through the barrel. 190's shot with once fired full length sized cases; 200's with new cases. Did not hold off for any wind correction. Inner X ring's 10 inches diameter. [IMG]http://i735.photobucket.com/albums/ww351/BartBob/30at1000.jpg[/IMG] And Sierra 190's leaving my 24" Garand barrel with a 7.62 NATO chamber leaving at 2550 to 2600 fps from its 1:12 twist barrel shot almost as good. About 10 to 12 inch test groups with a 4.6 pound trigger and more parts having to go back into battery the same for each shot aiming with a post front sight. [/QUOTE]
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Reloading
300 Win Mag Build and Loading Questions.
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