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Hunting
The Basics, Starting Out
Optimum Barrel length for .223 varmit rifle
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<blockquote data-quote="Coyboy" data-source="post: 65764" data-attributes="member: 3733"><p>Sorry 4-ked, I thought my reply pretty much answered his ? about velocity from my experience with my .223's. </p><p></p><p>Wombat, velocity depends on many things only one of which is barrel length. Two barrels the same length may shot the same load 100fps different. there are many things that increase or decrease velocity in different barrels, tolerences, throught lengths, ect.</p><p></p><p>With all rounds there is an optimal barrel length, at a certain point in length your margin of return in velocity dose not justify a longer tube.</p><p></p><p>A .223 optimum length in my opinion is 24", if you get a longer barrel it will go faster but not enough to make a practical difference in energy velocity. </p><p></p><p>I used the example of a 250fps difference from a 16" to a 22" tube length as an example of vel increase over an actual measured difference aprx 41fps, per inch, in my guns with the same load. I could use a different burn rate and that number could change to 29fps per inch, Many variabls.</p><p></p><p>I hoped that cleared up my answer for you 4-ked, err I mean wombat. /ubbthreads/images/graemlins/wink.gif</p><p></p><p>By the way I think a pac-Nor 32" straight taper would give you the fastest velocity in the little .223 Rem. and a 15 gr titanium bullet, /ubbthreads/images/graemlins/grin.gif great velocity dismal b.c.</p></blockquote><p></p>
[QUOTE="Coyboy, post: 65764, member: 3733"] Sorry 4-ked, I thought my reply pretty much answered his ? about velocity from my experience with my .223's. Wombat, velocity depends on many things only one of which is barrel length. Two barrels the same length may shot the same load 100fps different. there are many things that increase or decrease velocity in different barrels, tolerences, throught lengths, ect. With all rounds there is an optimal barrel length, at a certain point in length your margin of return in velocity dose not justify a longer tube. A .223 optimum length in my opinion is 24", if you get a longer barrel it will go faster but not enough to make a practical difference in energy velocity. I used the example of a 250fps difference from a 16" to a 22" tube length as an example of vel increase over an actual measured difference aprx 41fps, per inch, in my guns with the same load. I could use a different burn rate and that number could change to 29fps per inch, Many variabls. I hoped that cleared up my answer for you 4-ked, err I mean wombat. [img]/ubbthreads/images/graemlins/wink.gif[/img] By the way I think a pac-Nor 32" straight taper would give you the fastest velocity in the little .223 Rem. and a 15 gr titanium bullet, [img]/ubbthreads/images/graemlins/grin.gif[/img] great velocity dismal b.c. [/QUOTE]
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The Basics, Starting Out
Optimum Barrel length for .223 varmit rifle
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