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9mm shootout - What grain is the most accurate

  • 115 gr

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  • 124 gr

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  • 147 gr

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Discussion Starter #1
Hi, i was wondering what grain do you find the most accurate out of your p99 9mm.

The reason is i am going to guy a case 2000 rounds of Winchester White Box.  I got a choice between 115 gr, 124gr, and 147 gr.  The price are only $0.50 apart between 115 gr and 147 gr.  

I noticed mine likes the 147 gr the best.  It shoots a little higher.  And my P99 shoots low.  My Beretta also likes the 147 gr. better.  What grain does your p99 shoot the most accurate.
 

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I would think the more power it has the more accurate it will be, but if I were to do alot of plinking I would go with the lighter rounds.
 

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Discussion Starter #3
I will get the balistic from Winchester and check. What does the grain of the bullet have to do with the amount of shooting? Higher the grain the more wear and tear?
 

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Shooting today I found that my P99 likes both 115 and 124 in FMJ and HP...have not tried the 147 yet.......
 

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My P99s seem to like RWS/Geco 9mm 124gr FMJ best. The Greek Olympic 124gr FMJ shoots very well in it too.

Don't shoot a lot of 147gr.

The 115gr stuff doesn't seem to group as well as the 124gr, but Blazer seems to be the most accurate in mine.

Regards,
James
 

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I have been doing a lot of studying of the P99 and have read number of time about it shoo-in low in both 9mm and .40. I am going to start a thread on this.
 

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Mine will shoot em all into little bitty groups.
CCI Blazer 115gr. is the most consistent from case to case.
The Winchester 115gr. is the dirtiest, and the most inconsistent.
Norma 124gr. was great.
Winchester 147gr. HP's are my carry load, and they group very nice as well.
Heck, they all shoot within 1" or 2" of point of aim for me, and they all group in the 2" range offhand at 20 yards.
what else do you need?
The limiting accuracy factor I've found on the P99's, is the excessive gap in the sight picture.
 

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Wally World 115gr FMJ tends to be all over the place.
I get great results with Speer Gold Dot HP 124 and 124 +P, and also Geco 124gr FMJ.
 
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