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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Faxon Gunner Profile with Suppressor?
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<blockquote data-quote="Mike6158" data-source="post: 3084809" data-attributes="member: 1039"><p>Measure the OD of the skinniest part of the barrel diameter. My 8.6 Gunner measures 0.704" ish. I say ish because I didn't feel like taking the hand guard off and I'm not sure if the caliper reached below the taper. Subtract the .224 diameter of the bullet from that. Divide that number by 2 and you get the wall thickness of the barrel. (0.704" - 0.224") / 2 = wall thickness = 0.240" ish. Not bad. Do the same calc with .338 and wall thickness is 0.182". That's going to equate to less rigidity. </p><p></p><p>I couldn't find any useful data on the profile of the barrel but it looks to me like the profiles are similar or the same, just different bore. I put a borescope in my 8.6 barrel and it's very rough. Like gouges in the lands rough. I bought it in the early days of 8.6BLK excitement so maybe that's the issue. All I have to go off of is the very large 100 yard groups. </p><p>8.6BLK is an odd round. We'll see what the new barrel does when it finally gets here.</p></blockquote><p></p>
[QUOTE="Mike6158, post: 3084809, member: 1039"] Measure the OD of the skinniest part of the barrel diameter. My 8.6 Gunner measures 0.704" ish. I say ish because I didn't feel like taking the hand guard off and I'm not sure if the caliper reached below the taper. Subtract the .224 diameter of the bullet from that. Divide that number by 2 and you get the wall thickness of the barrel. (0.704" - 0.224") / 2 = wall thickness = 0.240" ish. Not bad. Do the same calc with .338 and wall thickness is 0.182". That's going to equate to less rigidity. I couldn't find any useful data on the profile of the barrel but it looks to me like the profiles are similar or the same, just different bore. I put a borescope in my 8.6 barrel and it's very rough. Like gouges in the lands rough. I bought it in the early days of 8.6BLK excitement so maybe that's the issue. All I have to go off of is the very large 100 yard groups. 8.6BLK is an odd round. We'll see what the new barrel does when it finally gets here. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Faxon Gunner Profile with Suppressor?
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