hornady 55gr

[24kilo]

What's the diff between the Hornady 55gr sp and the 55gr spsx? Both have exposed lead tips and they are of the same design ballisticly . Any help?

[Patriot_1776]

I just went to their site to see the bullets you had in question.  The 55gr. SP seems to be marketed as a standard soft point bullet.  The 55gr. SPSX's name in full would be "soft point super explosive."  The only conclusion I can come to is either they are ballistically the same bullet, just one is advertised with more gusto and just $0.46 per box more.  The other reason is it might be that the jacket on the SPSX is slightly thinner, or has slight scoring, thus lending to better fragmentation for varmint purposes.  If it has anything to do with something done to the jacket, such as scoring, that would account for the slightly higher cost   Hope this helps.

[OR-E-Gun Bill]

Here's the Hornady claim that I found concerning the SPSX:
"Similar in design and function to the standard Spire Point bullets, the Super Explosive Spire Points feature a thinner copper jacketed for even more rapid and devastating expansion on impact. Please note that these bullets cannot withstand velocities of greater than 3,500 fps."

[Chuck White]

Here's the Hornady claim that I found concerning the SPSX:
"Similar in design and function to the standard Spire Point bullets, the Super Explosive Spire Points feature a thinner copper jacketed for even more rapid and devastating expansion on impact. Please note that these bullets cannot withstand velocities of greater than 3,500 fps."

You are correct!
The SX bullets have a very thin jacket and therefore are more explosive when they hit!
If they are driven at top velocity in.... say, a 22.250, the bullet would probably not reach a target that was 300 yards away!
I have fired them and they look just about like a laser beam out to 150-200 yards, then they disappear!
What's happening is the jacket is pealing back and the lead core is vaporizing!

[Patriot_1776]

Quote from: OR-E-Gun Bill on Today at 05:40:57 AM
Here's the Hornady claim that I found concerning the SPSX:
"Similar in design and function to the standard Spire Point bullets, the Super Explosive Spire Points feature a thinner copper jacketed for even more rapid and devastating expansion on impact. Please note that these bullets cannot withstand velocities of greater than 3,500 fps."

You are correct!
The SX bullets have a very thin jacket and therefore are more explosive when they hit!
If they are driven at top velocity in.... say, a 22.250, the bullet would probably not reach a target that was 300 yards away!

Not asking for any kudos here from anyone (rather, kudos go to OR-E-Gun Bill for confirming it,) but that was one point I made in my original post. 

I have fired them and they look just about like a laser beam out to 150-200 yards, then they disappear!
What's happening is the jacket is pealing back and the lead core is vaporizing!

 
Were you able to see a particle trail left by the bullet as it disintigrated, Chuck?  I ask because I've never had the experience of a bullet disintigrating in flight, but that sure sounds interesting.