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Rifles, Reloading, Optics, Equipment
7mm STW
7mm STW with suppressor, need advice on barrel length.
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<blockquote data-quote="Lefty7mmstw" data-source="post: 885504" data-attributes="member: 48043"><p>I'd go with at least a 24" bbl. with the stw. If you weren't hanging that long of a can on the end I'd say to go with 26" or more. </p><p>Can you go to an 1885 or #1 action to get the overall length of the rifle down?? </p><p>If you are stuck on a 20-22" bbl. length a 280AI or 7rem may be a bit better option as it'll make less noise with the can and will make use of the shorter barrel length better; you'll probably get nearly the same speed with all three cal's in a 20" bbl and the stw will be harder to get accurate as your muzzle pressure will be higher and want to kick the bullet around a bit more.</p><p> </p><p> </p><p>The strain gauge graph here is the win 150 grain factory load fired in my old sendero 7mmstw. Notice the secondary peak; that was a tight spot at 16" down the bore and the pressure is still at 30 Kpsi. </p><p><a href="http://www.longrangehunting.com/forums/attachments/f28/19207d1363004549-4000-fps-7mm-stw-w-140-bullet-068.jpg" target="_blank"><img src="http://www.longrangehunting.com/forums/attachments/f28/19207d1363004549t-4000-fps-7mm-stw-w-140-bullet-068.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 885504, member: 48043"] I'd go with at least a 24" bbl. with the stw. If you weren't hanging that long of a can on the end I'd say to go with 26" or more. Can you go to an 1885 or #1 action to get the overall length of the rifle down?? If you are stuck on a 20-22" bbl. length a 280AI or 7rem may be a bit better option as it'll make less noise with the can and will make use of the shorter barrel length better; you'll probably get nearly the same speed with all three cal's in a 20" bbl and the stw will be harder to get accurate as your muzzle pressure will be higher and want to kick the bullet around a bit more. The strain gauge graph here is the win 150 grain factory load fired in my old sendero 7mmstw. Notice the secondary peak; that was a tight spot at 16" down the bore and the pressure is still at 30 Kpsi. [URL="http://www.longrangehunting.com/forums/attachments/f28/19207d1363004549-4000-fps-7mm-stw-w-140-bullet-068.jpg"][IMG]http://www.longrangehunting.com/forums/attachments/f28/19207d1363004549t-4000-fps-7mm-stw-w-140-bullet-068.jpg[/IMG][/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
7mm STW
7mm STW with suppressor, need advice on barrel length.
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