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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Stag 10 accuracy issues and thanks for the add to the forum
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<blockquote data-quote="cohunt" data-source="post: 1691987" data-attributes="member: 94491"><p>you have to tune an adjustable gas block for your load-- thats why they are adjustable, so they ca be adjusted-- its not just set it and forget it--you can do it that way, but most of the time it could be over gassed which hurts accuracy</p><p></p><p>problem with being over gassed: the bCG will start moving while the bullet is still in the barrel, when the bolt moves, the case starts to turn/spin and extract from the chamber before the bullet has left the barrel-- this causes 2 issues, 1st is the movement of the heavy BCG can cause the gun or shooter to move, 2nd is you will never have low sd or es as the brass breaks the chamber seal and gas pressure will vent off and cause inconsistencies in velocity.</p><p></p><p>cartridges like the 223 or 300bo can get away with using 1 gas block setting as the recoil is low and so is the powder charge-- but in a 308 sized case like the 6.5cm, you can have anywhere from 1 to 4 clicks different on your gas block settings between my different supersonic loads, not even getting into subsonic loads.</p><p></p><p>check your ejection patter with each "ladder test" to see if you are correctly gassed :</p><p></p><p>[ATTACH=full]145074[/ATTACH]</p></blockquote><p></p>
[QUOTE="cohunt, post: 1691987, member: 94491"] you have to tune an adjustable gas block for your load-- thats why they are adjustable, so they ca be adjusted-- its not just set it and forget it--you can do it that way, but most of the time it could be over gassed which hurts accuracy problem with being over gassed: the bCG will start moving while the bullet is still in the barrel, when the bolt moves, the case starts to turn/spin and extract from the chamber before the bullet has left the barrel-- this causes 2 issues, 1st is the movement of the heavy BCG can cause the gun or shooter to move, 2nd is you will never have low sd or es as the brass breaks the chamber seal and gas pressure will vent off and cause inconsistencies in velocity. cartridges like the 223 or 300bo can get away with using 1 gas block setting as the recoil is low and so is the powder charge-- but in a 308 sized case like the 6.5cm, you can have anywhere from 1 to 4 clicks different on your gas block settings between my different supersonic loads, not even getting into subsonic loads. check your ejection patter with each "ladder test" to see if you are correctly gassed : [ATTACH=full]145074[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Stag 10 accuracy issues and thanks for the add to the forum
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