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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Designing your own wildcats
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<blockquote data-quote="Rich Coyle" data-source="post: 1218943" data-attributes="member: 70559"><p>After reading what the others have posted I guess I must be lucky. I am up to about fifteen wildcats. At any rate one of my wildcats came as the result of thinking about bolt thrust. I decided the smallest case with a large enough case was the .220 Swift. The rim is slightly larger than the case. Since I like the Weatherby radii I decided to have that shoulder look. Ii was going to fire single shot so needed only enough neck to hold the bullet in the case. This would limit the amount of bolt thrust. The previous one was on a .378 Wea case shortened to 2 1/4" so there was lots of bolt thrust.</p><p></p><p>I purchased a Savage heavy 26" barrel Swift and had my reamer run into it before ever firing it. The resulting case holds 17% more than a standard Swift. Its favorite load pushed a 55 Nosler of Hornady at 4,005 feet per second. If a three shot group was larger than 3/8" it was terrible.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>A friend named it .220 Extremist "because you are nothing but an extremist."</p></blockquote><p></p>
[QUOTE="Rich Coyle, post: 1218943, member: 70559"] After reading what the others have posted I guess I must be lucky. I am up to about fifteen wildcats. At any rate one of my wildcats came as the result of thinking about bolt thrust. I decided the smallest case with a large enough case was the .220 Swift. The rim is slightly larger than the case. Since I like the Weatherby radii I decided to have that shoulder look. Ii was going to fire single shot so needed only enough neck to hold the bullet in the case. This would limit the amount of bolt thrust. The previous one was on a .378 Wea case shortened to 2 1/4" so there was lots of bolt thrust. I purchased a Savage heavy 26" barrel Swift and had my reamer run into it before ever firing it. The resulting case holds 17% more than a standard Swift. Its favorite load pushed a 55 Nosler of Hornady at 4,005 feet per second. If a three shot group was larger than 3/8" it was terrible.:) A friend named it .220 Extremist "because you are nothing but an extremist." [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Designing your own wildcats
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