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Stubby--Lapua
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<blockquote data-quote="britz" data-source="post: 157734" data-attributes="member: 7865"><p>THis got me curious so I compaired two loading books w/ same twist same cal same powder same primer. The only cal that I could do this with was the 358 winchester from the Nosler #4 and the Speer #11 manuals. One had a 22" and one had a 23 " barrel. With the few same powder comparisons that could be made, it seems that for that cal, the difference was about 40 -80 fps per inch loss (Admittedly this isn't a good comparison). </p><p></p><p>However, it is no secret that when you get into the large Weatherby mags and STW's Dakota's RUM's, you need to get longer barrels to utilize the increased amount of slow burning powder. Also, my line of reasoning is that with the increase in caliber, there is an increase in the amount of area in the bore for gases to expand, wouldn't this denote that larger cal would make better use of a larger (longer) gas expansion chamber?</p><p></p><p>Not trying to pick an arguement, just curious and I admit that I sure could be wrong.</p><p></p><p>This was in respnose to jwp475 post.</p></blockquote><p></p>
[QUOTE="britz, post: 157734, member: 7865"] THis got me curious so I compaired two loading books w/ same twist same cal same powder same primer. The only cal that I could do this with was the 358 winchester from the Nosler #4 and the Speer #11 manuals. One had a 22" and one had a 23 " barrel. With the few same powder comparisons that could be made, it seems that for that cal, the difference was about 40 -80 fps per inch loss (Admittedly this isn't a good comparison). However, it is no secret that when you get into the large Weatherby mags and STW's Dakota's RUM's, you need to get longer barrels to utilize the increased amount of slow burning powder. Also, my line of reasoning is that with the increase in caliber, there is an increase in the amount of area in the bore for gases to expand, wouldn't this denote that larger cal would make better use of a larger (longer) gas expansion chamber? Not trying to pick an arguement, just curious and I admit that I sure could be wrong. This was in respnose to jwp475 post. [/QUOTE]
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