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Rifles, Reloading, Optics, Equipment
Muzzleloader Hunting
First shot - clean bore
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<blockquote data-quote="ENCORE" data-source="post: 729601" data-attributes="member: 33046"><p>Fouling or no fouling makes a significent difference in some rifles, while making little to none in others. Even of the same manfacturer and model. Not only may completely clean (not just swabbed) barrels shoot to a different POI, they also load with different forces. Loading force is different than bullet seating force by the way.</p><p> </p><p><strong>NOTE......... The definition of clean which I'm using, is cleaned as it would be stored and not just swabbed, what some consider to be "clean".</strong></p><p> </p><p>I've measured ten's of thousands of force measurements. I've used some of the most advanced measuring equipment available, including accelerometers, to compare acceleration and force evaluations. There's one right way and every other way is wrong. Part of my profession before retirement....</p><p> </p><p>That said, I've tested different barrels that were completely clean and having used different lubricants for storage, before being shot and completely clean and after being shot and fouled with <u>BH209</u>. The measurement can be considered very consistant between all the different barrels and manufacturers, regardless which lube was used for complete cleaning and storage. Bullet/sabots loaded an average of 30# lighter with a clean bore. Regardless of the loading force for the specific barrel, the average loading force between clean and fouled was 30#. Regardless of what one may think, 30#'s is a significent difference and even a simple example will indicate that....... use <u>just your thumb</u> on a bathroom scale and push it down until it reaches 10#, then push it down until it hits 40#. <strong>NOTE</strong>...... <u>I do not use bathroom scales for measuring force, but an $800 calibrated precision instrument</u>.</p><p> </p><p>My personal favorite Pro Hunter, loads with a clean barrel, after being swabbed with two clean patches and ONLY two primers fired, at an average of 32#'s (+/-2#) of force to move the bullet in the barrel. Once my barrel is fouled (shot), it averages 52#'s (+/-4#). This rifle also has a significent difference in POI with a clean or fouled barrel. The POI would be acceptable to some for just close range shooting but, if the first shot may happen to be at long range, I wouldn't take the shot, especially at 200yds.</p><p> </p><p>I shot an example target which shows what my specific Pro Hunter does with a clean vs a fouled barrel. No matter what brand of rifle I've owned in the past, which has included H&R, CVA, Knight and T/C, I've always fired two fouling shots prior to a hunt, short of when using 2f back in the day. With BH209 comming out, I leave my rifle loaded for extended periods of time fouled, with absolutely no concern what so ever. Only exception would be that if I fell in a creek or got caught in the pouring rain.</p><p> </p><p>The following target photo shows what this specific rifle does, regardless of the lubrication type/brand in the barrel.</p></blockquote><p></p>
[QUOTE="ENCORE, post: 729601, member: 33046"] Fouling or no fouling makes a significent difference in some rifles, while making little to none in others. Even of the same manfacturer and model. Not only may completely clean (not just swabbed) barrels shoot to a different POI, they also load with different forces. Loading force is different than bullet seating force by the way. [B]NOTE......... The definition of clean which I'm using, is cleaned as it would be stored and not just swabbed, what some consider to be "clean".[/B] I've measured ten's of thousands of force measurements. I've used some of the most advanced measuring equipment available, including accelerometers, to compare acceleration and force evaluations. There's one right way and every other way is wrong. Part of my profession before retirement.... That said, I've tested different barrels that were completely clean and having used different lubricants for storage, before being shot and completely clean and after being shot and fouled with [U]BH209[/U]. The measurement can be considered very consistant between all the different barrels and manufacturers, regardless which lube was used for complete cleaning and storage. Bullet/sabots loaded an average of 30# lighter with a clean bore. Regardless of the loading force for the specific barrel, the average loading force between clean and fouled was 30#. Regardless of what one may think, 30#'s is a significent difference and even a simple example will indicate that....... use [U]just your thumb[/U] on a bathroom scale and push it down until it reaches 10#, then push it down until it hits 40#. [B]NOTE[/B]...... [U]I do not use bathroom scales for measuring force, but an $800 calibrated precision instrument[/U]. My personal favorite Pro Hunter, loads with a clean barrel, after being swabbed with two clean patches and ONLY two primers fired, at an average of 32#'s (+/-2#) of force to move the bullet in the barrel. Once my barrel is fouled (shot), it averages 52#'s (+/-4#). This rifle also has a significent difference in POI with a clean or fouled barrel. The POI would be acceptable to some for just close range shooting but, if the first shot may happen to be at long range, I wouldn't take the shot, especially at 200yds. I shot an example target which shows what my specific Pro Hunter does with a clean vs a fouled barrel. No matter what brand of rifle I've owned in the past, which has included H&R, CVA, Knight and T/C, I've always fired two fouling shots prior to a hunt, short of when using 2f back in the day. With BH209 comming out, I leave my rifle loaded for extended periods of time fouled, with absolutely no concern what so ever. Only exception would be that if I fell in a creek or got caught in the pouring rain. The following target photo shows what this specific rifle does, regardless of the lubrication type/brand in the barrel. [/QUOTE]
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First shot - clean bore
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