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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
224 allen mag
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<blockquote data-quote="brianwinzor" data-source="post: 160526" data-attributes="member: 1067"><p>Kirby, Thanks for the information I requested. </p><p></p><p>If the 107 grain Wildcat could only be driven to 3,100 fps (318,000 rpm) in a 7 twist barrel, and if driven to similar rpm's in my 6.5 twist barrel then I am only looking at 2,850 fps in my .224 Clark. </p><p></p><p>This is about 300 fps below what I believe that weight would reach in my .224 Clark, and loading down to that velocity with H870 and AR2218 is almost certain to cause a powder fouling problem.</p><p></p><p>I obtained 2950 fps with the 100 grain Wildcat in my 22/250 AI (28 deg) using 42.0 grains of Win WMR, and could have gone 0.5 - 1.0 grain higher, so it is easy to believe that you reached 3,100 fps with this bullet in your 22/250AI.</p><p></p><p>Now that I have about 500 100 grain and 105 grain bullets that are virtually unusable in my .224 Clark, I am seriously looking at using them up by installing a 7 twist barrel in my 22/250AI when the existing 10 twist barrel expires.</p><p></p><p>I agree that a 110 grain FB ULD should be great for medium game in your 224AM, and a similar philosophy was behind my decision to build the .224 Clark around the 100 grain bullets. </p><p></p><p>I reasoned that the 25/06 with the 100 grain bullet is good on medium game here in Oz. Therefore the 224 Clark which has a similar case capacity, should also work well this bullet weight on medium game, with the added bonus of a higher BC.</p><p></p><p>I have to confess that I did not expect the 100 & 115 grain Nosler BT's to withstand the rpms generated by 257W with 7 twist barrel, so I was very surprised when the did.</p><p></p><p>Oh to dream, and I wonder how many barrels will I burn out before Nosler release a 100 grain Accubond? Hopefully it won't be that long before I get my Chrono to record velocities again. Brian.</p></blockquote><p></p>
[QUOTE="brianwinzor, post: 160526, member: 1067"] Kirby, Thanks for the information I requested. If the 107 grain Wildcat could only be driven to 3,100 fps (318,000 rpm) in a 7 twist barrel, and if driven to similar rpm's in my 6.5 twist barrel then I am only looking at 2,850 fps in my .224 Clark. This is about 300 fps below what I believe that weight would reach in my .224 Clark, and loading down to that velocity with H870 and AR2218 is almost certain to cause a powder fouling problem. I obtained 2950 fps with the 100 grain Wildcat in my 22/250 AI (28 deg) using 42.0 grains of Win WMR, and could have gone 0.5 - 1.0 grain higher, so it is easy to believe that you reached 3,100 fps with this bullet in your 22/250AI. Now that I have about 500 100 grain and 105 grain bullets that are virtually unusable in my .224 Clark, I am seriously looking at using them up by installing a 7 twist barrel in my 22/250AI when the existing 10 twist barrel expires. I agree that a 110 grain FB ULD should be great for medium game in your 224AM, and a similar philosophy was behind my decision to build the .224 Clark around the 100 grain bullets. I reasoned that the 25/06 with the 100 grain bullet is good on medium game here in Oz. Therefore the 224 Clark which has a similar case capacity, should also work well this bullet weight on medium game, with the added bonus of a higher BC. I have to confess that I did not expect the 100 & 115 grain Nosler BT's to withstand the rpms generated by 257W with 7 twist barrel, so I was very surprised when the did. Oh to dream, and I wonder how many barrels will I burn out before Nosler release a 100 grain Accubond? Hopefully it won't be that long before I get my Chrono to record velocities again. Brian. [/QUOTE]
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