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The Range
Ammo & Reloading
6.5-06 and 22-243 anyone?
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<blockquote data-quote="criticalbass" data-source="post: 2283948" data-attributes="member: 711"><p>Clint, I had to convert a poorly chambered 22-250 to a 22-243 recently. The gun is a Turk Mauser with a fluted barrel, 14 twist. 22-250 chamber was oversized and crooked to boot. (shot good, ruined brass) Steve Baldwin at Mechanical Accuracy in OKC was able to rechamber it in 22-243. He tells me that this caliber is popular among coyote hunters in western OK, and that he has built a bunch of them. Gun is pretty heavy, but I won't be walking a lot with it.</p><p></p><p>Have only loaded and fired 15 rounds so far, and haven't been able to find any published data anywhere (I know it's a wildcat). What I did was to take the top limit loads for various bullets in 22-250 using Varget. My plan is to increase the loads a grain at a time until I start seeing pressure warning signs.</p><p></p><p>The max 22-250 loads seem pretty tame, and at a hundred yards stay pretty close together.</p><p></p><p>I don't have a chrono.</p><p></p><p>55 gr Speer FMJ--WLR primer, 38 grains of Varget, new R.P. .243 cases with the necks sized down to .224</p><p></p><p>45 gr jacketed (don't see brand right now), 39.5 grains of Varget</p><p></p><p>40 gr Nosler Ballistic tip, 40 grains of Varget. Everything else same on all three loads.</p><p></p><p>The 40 grain loads showed just a hint of primer flattening, so I will proceed with caution on that one. According to the Lyman book, that will push the bullet from a 22-250 at 4130 fps. </p><p></p><p>If you find a source of load data for this calibr, I hopoe you will share it with me. I'll do the same for you, and will try to keep you advised on my 22-250 based loads performance. Sending you a PM.</p><p></p><p>Gotta buy a chrono . . .</p></blockquote><p></p>
[QUOTE="criticalbass, post: 2283948, member: 711"] Clint, I had to convert a poorly chambered 22-250 to a 22-243 recently. The gun is a Turk Mauser with a fluted barrel, 14 twist. 22-250 chamber was oversized and crooked to boot. (shot good, ruined brass) Steve Baldwin at Mechanical Accuracy in OKC was able to rechamber it in 22-243. He tells me that this caliber is popular among coyote hunters in western OK, and that he has built a bunch of them. Gun is pretty heavy, but I won't be walking a lot with it. Have only loaded and fired 15 rounds so far, and haven't been able to find any published data anywhere (I know it's a wildcat). What I did was to take the top limit loads for various bullets in 22-250 using Varget. My plan is to increase the loads a grain at a time until I start seeing pressure warning signs. The max 22-250 loads seem pretty tame, and at a hundred yards stay pretty close together. I don't have a chrono. 55 gr Speer FMJ--WLR primer, 38 grains of Varget, new R.P. .243 cases with the necks sized down to .224 45 gr jacketed (don't see brand right now), 39.5 grains of Varget 40 gr Nosler Ballistic tip, 40 grains of Varget. Everything else same on all three loads. The 40 grain loads showed just a hint of primer flattening, so I will proceed with caution on that one. According to the Lyman book, that will push the bullet from a 22-250 at 4130 fps. If you find a source of load data for this calibr, I hopoe you will share it with me. I'll do the same for you, and will try to keep you advised on my 22-250 based loads performance. Sending you a PM. Gotta buy a chrono . . . [/QUOTE]
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6.5-06 and 22-243 anyone?
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