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Posted: 10/9/2008 6:08:41 PM EDT
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What is the difference between a Hornady 22 cal 55 gr SPSX #2260 and Hornady 22 cal 55 gr SP #2265 These two bullets look identical to me. |
According to google. A trip to the Hornandy website would give better details. I would assume that the super explosive would be a thinner skinned varmit bullet, the other not so much. I'm sure the super explosive would probably cost more. |
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The SPSX has a thinner jacket with a maximum FPS. Above that velocity and it will most likely vaporize in mid air because the jackets stress allowance has been exceeded. In a rought throat/bore it may blow-up with less velocity. They were made for added expansion at lower velocity rds of a given caliber. In .22 cal. this would be say .223 and under. In a .22-250 they can be pushed to higher velocities than they are designed for and this is when they blow up. I shot a ground squirrel from a .22-250 loaded to about the max velocity level. The range was about 75-80 yds. I actually thought I missed because of the dust cloud that I saw. Loaded another rd. and walked out to where I shot at him and there he was. A nice COM hit with the only exit out the top of his head. A small piece of shrapnel exited his head. The bullet vaporized inside the ground squirrel and literally blew the dust out of its fur and left the ground squirrel completely intact. |
+1 plus rifle twist they dont recommend the sx in a twist like anything faster than 1-10 twist anything faster is too fast and in flight the bullet will exploded.. |
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