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Rifles, Reloading, Optics, Equipment
Gunsmithing
How to figure out freebore? How much is too Much??
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<blockquote data-quote="Saskquatch6" data-source="post: 2118050" data-attributes="member: 58704"><p>Dxlbaile - it sounds like from what you're saying that your Ruger shoots the 170gr Bergers quite well and unless it's a custom barrel I expect the twist rate to be 1:10. My experience is that 150gr is on the margin for stabilizing in a 1:10 twist 270 and bullets much heavier won't stabilize well at all and this becomes more evident as distance increases beyond 400 yards. The heavies may group reasonably well at 100 or 200 yards but begin to destabilize further down range where groups open up significantly. Just a caution- I'd confirm your rifle can actually stabilize the heavy bullets you're thinking of using properly (at distance) before investing in additional reaming etc as doing so could negatively impact its ability to shoot lighter bullets also - meaning giving the rifle a significantly longer throat could result in it not shooting anything particularly well. I'd check this out first and if all is well then continue with your plan using the 170s. Good luck</p></blockquote><p></p>
[QUOTE="Saskquatch6, post: 2118050, member: 58704"] Dxlbaile - it sounds like from what you’re saying that your Ruger shoots the 170gr Bergers quite well and unless it’s a custom barrel I expect the twist rate to be 1:10. My experience is that 150gr is on the margin for stabilizing in a 1:10 twist 270 and bullets much heavier won’t stabilize well at all and this becomes more evident as distance increases beyond 400 yards. The heavies may group reasonably well at 100 or 200 yards but begin to destabilize further down range where groups open up significantly. Just a caution- I’d confirm your rifle can actually stabilize the heavy bullets you’re thinking of using properly (at distance) before investing in additional reaming etc as doing so could negatively impact its ability to shoot lighter bullets also - meaning giving the rifle a significantly longer throat could result in it not shooting anything particularly well. I’d check this out first and if all is well then continue with your plan using the 170s. Good luck [/QUOTE]
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How to figure out freebore? How much is too Much??
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