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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Kirby, 22 AM ?
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<blockquote data-quote="brianwinzor" data-source="post: 82321" data-attributes="member: 1067"><p>Gator, Your 22/284 certainly has caused you frustration, with bullet blowups. You mention that you tried every "bullet that I could get my hands on over 75 grains", so can I assume that you tried the Sierra 80 grains HPBT MK? </p><p></p><p>I have corresponded with numerous users of "big cased 224's", and note that some had problems with Berger and JLK 80 grain VLD's coming apart at 3500+ velocities, but cannot recall anyone having bullet blowup with Sierra 80 grain MK. </p><p></p><p>I just looked through several emails from 22/6mm AI users, and all were using the 80 grain MK with no problems at velocities up from 3500 and up to 3750 fps in 1 in 8 twist barrels.(not sure how many grooves) </p><p></p><p>I chronographed the Sierra 80 grain MK in my 224 Clark at velocities up to 3730 fps, but as expected, due to the 1 in 10 twist barrel, the bullets did not stabilise and keyholed into the 100 yard target. However, all bullets did reach the target. </p><p></p><p>I also noted that some of the big case .224 users were using the 80 grain MK Moly bullet with success. </p><p></p><p>Assuming that the 80 grain MK did "dust" in your Lilja 1 in 8 twist barrel, then I can offer no other possible explanation other than what Kirby has already suggested.</p><p> </p><p>As mentioned in my post above, I was considering using a 3 groove 1 in 7 twist barrel, in my next .224 Clark, but in view of Kirby's and your experience, I will revert to a 6 groove configuration. Good luck in solving your barrel dilemna. Brian.</p></blockquote><p></p>
[QUOTE="brianwinzor, post: 82321, member: 1067"] Gator, Your 22/284 certainly has caused you frustration, with bullet blowups. You mention that you tried every "bullet that I could get my hands on over 75 grains", so can I assume that you tried the Sierra 80 grains HPBT MK? I have corresponded with numerous users of "big cased 224's", and note that some had problems with Berger and JLK 80 grain VLD's coming apart at 3500+ velocities, but cannot recall anyone having bullet blowup with Sierra 80 grain MK. I just looked through several emails from 22/6mm AI users, and all were using the 80 grain MK with no problems at velocities up from 3500 and up to 3750 fps in 1 in 8 twist barrels.(not sure how many grooves) I chronographed the Sierra 80 grain MK in my 224 Clark at velocities up to 3730 fps, but as expected, due to the 1 in 10 twist barrel, the bullets did not stabilise and keyholed into the 100 yard target. However, all bullets did reach the target. I also noted that some of the big case .224 users were using the 80 grain MK Moly bullet with success. Assuming that the 80 grain MK did "dust" in your Lilja 1 in 8 twist barrel, then I can offer no other possible explanation other than what Kirby has already suggested. As mentioned in my post above, I was considering using a 3 groove 1 in 7 twist barrel, in my next .224 Clark, but in view of Kirby's and your experience, I will revert to a 6 groove configuration. Good luck in solving your barrel dilemna. Brian. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Kirby, 22 AM ?
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