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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
204 testing
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<blockquote data-quote="65WSM" data-source="post: 796296" data-attributes="member: 9551"><p>Remington primers have a "thicker" cup?</p><p></p><p>Please note that the thicker material is soft brass. That does not mean that they can take more pressure than other primers. The Russian Wolf primmer seems to have the toughest alloy if you want to take more pressure. The CCI 400 primers are slightly oversize and the most difficult to seat. CCI markets a primer to the "AR" fraternity, I think it is called 450 that is tough. </p><p></p><p>The .204 Ruger was designed way overbore to provide spectacular velocities without even coming close to the pressures of competitive varmint cartridges. The result is longer barrel life compared to .22-250, .17 Remington, .220 Swift, .224 WSSM. I use only HBN coated bullets so I do not produce the published velocities without exceeding the powder charges shown. </p><p></p><p>The .204 Ruger is a fast twenty caliber cartridge. I am currently assembling a .20 PPC. The .20 PPC has at most one more grain of capacity but I have chosen it for a longer neck. I hate the short neck of the .204 Ruger. It is not sufficient for partial sizing and centering the bullets in the chamber. I already have a Wilson sizer, seater and a Redding full length bushing die on hand. </p><p></p><p>If you want a fast twenty, build a .20 BR or .20 Dasher. I have nitrocarburized barrels on my twenties. You may be able to wear out a .20 BR barrel in a thousand rounds.</p></blockquote><p></p>
[QUOTE="65WSM, post: 796296, member: 9551"] Remington primers have a "thicker" cup? Please note that the thicker material is soft brass. That does not mean that they can take more pressure than other primers. The Russian Wolf primmer seems to have the toughest alloy if you want to take more pressure. The CCI 400 primers are slightly oversize and the most difficult to seat. CCI markets a primer to the "AR" fraternity, I think it is called 450 that is tough. The .204 Ruger was designed way overbore to provide spectacular velocities without even coming close to the pressures of competitive varmint cartridges. The result is longer barrel life compared to .22-250, .17 Remington, .220 Swift, .224 WSSM. I use only HBN coated bullets so I do not produce the published velocities without exceeding the powder charges shown. The .204 Ruger is a fast twenty caliber cartridge. I am currently assembling a .20 PPC. The .20 PPC has at most one more grain of capacity but I have chosen it for a longer neck. I hate the short neck of the .204 Ruger. It is not sufficient for partial sizing and centering the bullets in the chamber. I already have a Wilson sizer, seater and a Redding full length bushing die on hand. If you want a fast twenty, build a .20 BR or .20 Dasher. I have nitrocarburized barrels on my twenties. You may be able to wear out a .20 BR barrel in a thousand rounds. [/QUOTE]
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204 testing
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