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<blockquote data-quote="J E Custom" data-source="post: 1969572" data-attributes="member: 2736"><p>Being as this is just a discussion, there is one more comment I will make about the load cell method.</p><p></p><p>After reviewing all the data before we decided on the method we did we realized that the load cell had to be mounted solid for it it be accurate (No movement during firing) This could explain the reason it has 4 % variance in the readings. We also wanted to control the recoil distance to minimize inertia skewing the results. and possibly damaging rifle stocks and other accessories by restricting any movement. In Hatcher's notes at Aberdeen proving ground they/he used the same system we did to test muzzle brakes for the government with unlimited funds at his disposable. </p><p></p><p>It was important to try and duplicate conditions when firing, but several inches travel wasn't enough to separate small changes in recoil, so we decided to go with approximately twice the travel when fired against the shoulder. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p></p><p>Just more info for those interested.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1969572, member: 2736"] Being as this is just a discussion, there is one more comment I will make about the load cell method. After reviewing all the data before we decided on the method we did we realized that the load cell had to be mounted solid for it it be accurate (No movement during firing) This could explain the reason it has 4 % variance in the readings. We also wanted to control the recoil distance to minimize inertia skewing the results. and possibly damaging rifle stocks and other accessories by restricting any movement. In Hatcher's notes at Aberdeen proving ground they/he used the same system we did to test muzzle brakes for the government with unlimited funds at his disposable. It was important to try and duplicate conditions when firing, but several inches travel wasn't enough to separate small changes in recoil, so we decided to go with approximately twice the travel when fired against the shoulder. :) Just more info for those interested. J E CUSTOM [/QUOTE]
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