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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Secondary Explosion Effect? Or.....?
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<blockquote data-quote="65WSM" data-source="post: 855451" data-attributes="member: 9551"><p>I have not loaded a lot of Reloader 25. I did have some mysterious detonations with the .264 Winchester Magnum with R-22. I got rid of my two .264s before R-25 came out. I switched to the WSM case and tend to use Retumbo rather than R-25 with similar performance.</p><p></p><p>The Reloader 22 was leaving fumes in the barrel after firing in my .264 (again 2 different rifles). The fumes were detonating outside of the case with the next round if I did not blow out the barrel. I used a blast of canned air to clear the barrel. I had dents in the shoulder but not back onto the shank of the case. Compression would detonate the fumes when the case expanded to fill the chamber. Because it was a belted magnum, there was more room between the case shoulder and chamber. The Reloader 22 and 25 are Bufors powders with a lot of nitroglycerine and a lot of retardant to make them slow. I do not seem to have fumes from ADI Retumbo or Vithavuori powders. I will have some "Norma" 217 to play with tomorrow. It is the same powder Norma uses in the .30-378 Weatherby ammo. It does produce 3400 fps with 180 gr bullets, I have chronographed it my self. I do not know where it is made. I would guess it it a Bufors powder and may have similar problems.</p></blockquote><p></p>
[QUOTE="65WSM, post: 855451, member: 9551"] I have not loaded a lot of Reloader 25. I did have some mysterious detonations with the .264 Winchester Magnum with R-22. I got rid of my two .264s before R-25 came out. I switched to the WSM case and tend to use Retumbo rather than R-25 with similar performance. The Reloader 22 was leaving fumes in the barrel after firing in my .264 (again 2 different rifles). The fumes were detonating outside of the case with the next round if I did not blow out the barrel. I used a blast of canned air to clear the barrel. I had dents in the shoulder but not back onto the shank of the case. Compression would detonate the fumes when the case expanded to fill the chamber. Because it was a belted magnum, there was more room between the case shoulder and chamber. The Reloader 22 and 25 are Bufors powders with a lot of nitroglycerine and a lot of retardant to make them slow. I do not seem to have fumes from ADI Retumbo or Vithavuori powders. I will have some "Norma" 217 to play with tomorrow. It is the same powder Norma uses in the .30-378 Weatherby ammo. It does produce 3400 fps with 180 gr bullets, I have chronographed it my self. I do not know where it is made. I would guess it it a Bufors powder and may have similar problems. [/QUOTE]
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Secondary Explosion Effect? Or.....?
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