Had an interesting experience today so I figured I'd run by the people here and see what all y'all had to say. I went to break in a gun ( S&W Shield Performance Center) today so I took a lot of cheap ammo and some defense ammo to verify it would work after running the cheap stuff.
Ran 200 rounds of Tulammo 115 FMJ 9mm and the gun consistently shot low. About 3.5 inches at 10 yards. Move up to five yards and it was about 2 inches low. I figured it was me and my trigger finger but everything was grouping well. So I didn't think too much of it. Perfect practice makes perfect and all.
Switched over to HPR 124 JHP (think it's a Hornady bullet). All of a sudden it was hitting POA, spot on. So either I accidentally fixed the issue for those last 25 rounds or there is a significant enough difference between the ammo to cause a fairly large difference in POI.
So I looked into it a little bit, and was surprised to find that the Tulammo is supposed to be hotter than the self defense stuff. To the tune of 100fps or so. I sure would've guessed it went the other way. The HPR felt much more stout.
Most of all I was just curious to see what everyone else has run into like this. Anyone else end up surprised about things that shouldn't be? By the way, I really like the shield. It generally feels like a much bigger gun than it is.
Ran 200 rounds of Tulammo 115 FMJ 9mm and the gun consistently shot low. About 3.5 inches at 10 yards. Move up to five yards and it was about 2 inches low. I figured it was me and my trigger finger but everything was grouping well. So I didn't think too much of it. Perfect practice makes perfect and all.
Switched over to HPR 124 JHP (think it's a Hornady bullet). All of a sudden it was hitting POA, spot on. So either I accidentally fixed the issue for those last 25 rounds or there is a significant enough difference between the ammo to cause a fairly large difference in POI.
So I looked into it a little bit, and was surprised to find that the Tulammo is supposed to be hotter than the self defense stuff. To the tune of 100fps or so. I sure would've guessed it went the other way. The HPR felt much more stout.
Most of all I was just curious to see what everyone else has run into like this. Anyone else end up surprised about things that shouldn't be? By the way, I really like the shield. It generally feels like a much bigger gun than it is.
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