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Rifles, Reloading, Optics, Equipment
Gunsmithing
Turn down barrel contour?
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<blockquote data-quote="elktaker" data-source="post: 1136837" data-attributes="member: 86786"><p>I have 6mmx45 bull barrel that I picked up for $80 on ebay awhile back. It is a shilen 1:10 twist. I think it is a 26".</p><p></p><p>It shoots .5 MOA or better on a non-windy days with Nosler 70gr BT out to 400 yd. This is with reloads using brass fired from ARs. I just loaded .5gr below max for H335 and with no load development I ended up with .5 moa groups. Only load or bullet I have tried.</p><p></p><p>My question is will I see any negative affects having the barrel turned down to a lighter contour other than the obvious reduction in weight affecting accuracy. I am looking to lighten it up for a backup deer gun with a little heavier bullets and bc it is cheap to shoot and gives me practice reading the wind. I would probably have it threaded for a brake also (maybe invest in a silencer one day)</p><p></p><p>I, also, could have it reamed to a new chamber for longer ranges. I know I do not really want 243 win and the 1:10 twist will probably prohibit me from using high BC VLD's.</p></blockquote><p></p>
[QUOTE="elktaker, post: 1136837, member: 86786"] I have 6mmx45 bull barrel that I picked up for $80 on ebay awhile back. It is a shilen 1:10 twist. I think it is a 26". It shoots .5 MOA or better on a non-windy days with Nosler 70gr BT out to 400 yd. This is with reloads using brass fired from ARs. I just loaded .5gr below max for H335 and with no load development I ended up with .5 moa groups. Only load or bullet I have tried. My question is will I see any negative affects having the barrel turned down to a lighter contour other than the obvious reduction in weight affecting accuracy. I am looking to lighten it up for a backup deer gun with a little heavier bullets and bc it is cheap to shoot and gives me practice reading the wind. I would probably have it threaded for a brake also (maybe invest in a silencer one day) I, also, could have it reamed to a new chamber for longer ranges. I know I do not really want 243 win and the 1:10 twist will probably prohibit me from using high BC VLD's. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Turn down barrel contour?
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