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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
375 Remington Ultra Magnum necked up to 50 caliber (.510)
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<blockquote data-quote="sable tireur" data-source="post: 1280585" data-attributes="member: 27307"><p>375rifleman,</p><p></p><p>There aren't any toes to step on. Col. Alphin and Fred Wells have both been deceased for many years. </p><p></p><p>There is very little difference between the two cartridges, nothing significant anyway. Both are derived from the .460 Weatherby for the intent of shooting any of the Big Five African dangerous game animals. The difference that I was made aware of is that Fred created his version in about 1969 but never did anything to protect the concept since he didn't really believe in that sort of thing. He built custom rifles for folks headed to Africa to hunt dangerous game. </p><p></p><p>Col. Alphin believed that everything he did warranted some form of trademark or protection from others using his ideas. In the situation of the .500 A-Square in 1976, Col. Alphin retained all of the information about the design and only released ammunition through his company, making the cartridge 'proprietary'. Nice man but a tiny bit egotistical...</p><p></p><p>Price difference? The .510 Wells express is simply a reamer and brass. Dave Kiff has the print and will make a reamer for you. If you're intent on using the 750 AMAX, then you need to work out the throat for the reamer or have a secondary throating reamer. </p><p></p><p>The .500 A-Square has been out of production since 2011. I'm sure you can find dies somewhere then get one of the reamer makers to make a reamer for you if the family has released it into the public domain. </p><p></p><p>Regards.</p></blockquote><p></p>
[QUOTE="sable tireur, post: 1280585, member: 27307"] 375rifleman, There aren't any toes to step on. Col. Alphin and Fred Wells have both been deceased for many years. There is very little difference between the two cartridges, nothing significant anyway. Both are derived from the .460 Weatherby for the intent of shooting any of the Big Five African dangerous game animals. The difference that I was made aware of is that Fred created his version in about 1969 but never did anything to protect the concept since he didn't really believe in that sort of thing. He built custom rifles for folks headed to Africa to hunt dangerous game. Col. Alphin believed that everything he did warranted some form of trademark or protection from others using his ideas. In the situation of the .500 A-Square in 1976, Col. Alphin retained all of the information about the design and only released ammunition through his company, making the cartridge 'proprietary'. Nice man but a tiny bit egotistical... Price difference? The .510 Wells express is simply a reamer and brass. Dave Kiff has the print and will make a reamer for you. If you're intent on using the 750 AMAX, then you need to work out the throat for the reamer or have a secondary throating reamer. The .500 A-Square has been out of production since 2011. I'm sure you can find dies somewhere then get one of the reamer makers to make a reamer for you if the family has released it into the public domain. Regards. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
375 Remington Ultra Magnum necked up to 50 caliber (.510)
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