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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
224 Allen Magnum testing finished............
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<blockquote data-quote="brianwinzor" data-source="post: 114219" data-attributes="member: 1067"><p>Kirby, Great information which will be very helpful. </p><p></p><p>I certainly will still proceed with testing both the 100 and 107's in the 224 Clark, and if I can get around the 3,100 "ceiling" with the 107 at sub 0.5 moa, then I will be happy as a pig in you no what. I was only expecting to get about 3,150 with that bullet any way.</p><p></p><p>In retrospect I wish that when ordering the .224 Krieger, that I had chosen a 7 twist instead of 6.5 twist. However, at the time I believed that the 7 twist would stabilise the 100 grain bullet, but may struggle with the extra .050 length of the 107, so I decided to be conservative and went with the 6.5.</p><p></p><p>I will certainly try the 142 ULD's in the 257 Weatherby, but if they do dust at around 3,200 - 3250 fps, then I will stick with the 156, as I have good supply of them and your testing has shown that they perform well up until about 3350 fps. I agree with your prediction that the 257 Weatherby should get around 3000 fps with the 156 ULD. </p><p></p><p>I was originally hoping to use the 7mm Dakota case for this project, but my gunsmith has a 257 Weatherby reamer, and was ready to go, and there was going to be a 2 -3 month delay in getting a reamer for the 25/7mm Dakota. The clincher was the $A300 cost of getting 100 7mm Dakota cases to Oz, compared to $A85 for 100 7mm RUM cases that I recently purchased here.</p><p></p><p>So if the performance of the 257Weatherby is not up to expectations, I will neck down and shorten the 7mm RUM cases to about 2.550 inches, have Bill (my gunsmith) set back the barrel and start again. </p><p></p><p>I will certainly keep you posted with my results, and have a happy long week end with the Graves. Regards, Brian.</p></blockquote><p></p>
[QUOTE="brianwinzor, post: 114219, member: 1067"] Kirby, Great information which will be very helpful. I certainly will still proceed with testing both the 100 and 107's in the 224 Clark, and if I can get around the 3,100 "ceiling" with the 107 at sub 0.5 moa, then I will be happy as a pig in you no what. I was only expecting to get about 3,150 with that bullet any way. In retrospect I wish that when ordering the .224 Krieger, that I had chosen a 7 twist instead of 6.5 twist. However, at the time I believed that the 7 twist would stabilise the 100 grain bullet, but may struggle with the extra .050 length of the 107, so I decided to be conservative and went with the 6.5. I will certainly try the 142 ULD's in the 257 Weatherby, but if they do dust at around 3,200 - 3250 fps, then I will stick with the 156, as I have good supply of them and your testing has shown that they perform well up until about 3350 fps. I agree with your prediction that the 257 Weatherby should get around 3000 fps with the 156 ULD. I was originally hoping to use the 7mm Dakota case for this project, but my gunsmith has a 257 Weatherby reamer, and was ready to go, and there was going to be a 2 -3 month delay in getting a reamer for the 25/7mm Dakota. The clincher was the $A300 cost of getting 100 7mm Dakota cases to Oz, compared to $A85 for 100 7mm RUM cases that I recently purchased here. So if the performance of the 257Weatherby is not up to expectations, I will neck down and shorten the 7mm RUM cases to about 2.550 inches, have Bill (my gunsmith) set back the barrel and start again. I will certainly keep you posted with my results, and have a happy long week end with the Graves. Regards, Brian. [/QUOTE]
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224 Allen Magnum testing finished............
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