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Can anyone get a 9 mm RN to shoot?

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Can anyone get a 9 mm RN to shoot? Empty Can anyone get a 9 mm RN to shoot?

Post by bruce martindale on 7/25/2020, 9:57 am

Bases are good, maybe they have short bearing surface or get misaligned too easily?

Conicals will shoot, RN, not so much
Thanks

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Post by CR10X on 7/25/2020, 10:13 am

If you are talking jacketed, then Zero 115 FMJ, 5.0 gr WSF, WSP, Starline brass and minimal crimp.

Also the David Sams load with Power Pistol. Its in the stickys somewhere. 

Use just enough expansion to get the bullet started and don't over crimp, really just smooth it back out and that's it with Dillon resized brass.

If its a good bullet, like the Zeros or Hornady, its usually a twist / velocity issue. 

If you are talking lead, I gave up. I don't think the usual chamber throats are quite right for some lead loads or something. And I did not want to get down too light and get into other issues.  Jacketed was cheap enough anyway.  

CR

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Post by REConley on 7/25/2020, 10:20 am

Atlanta Arms Ammo .....
[size=24]Elite Ammo - 9mm 115GR FMJ Match AMU [/size]
This ammunition is designed for extreme accuracy at 50 yards.
 
This ammo is used by the Army Marksmanship Unit and the Marine Service Pistol team for service pistol matches.
 
Accuracy test requirement: 5 ten-shot groups at 50 yards with an average group size not to exceed 1.5 inches.

Specifications:
 
Bullet: 115GR FMJ

Velocity: 1150 FPS ±

Overall Length (OAL): 1.105” ± .005

 
 I have some of this, only shot it at 25 yards so far but it is just a ragged hole at that distance. 
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Post by bruce martindale on 7/25/2020, 11:30 am

Thanks Cecil,
Does oal matter?

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Post by CR10X on 7/25/2020, 1:14 pm

I generally start with the Atlanta Arms & Ammo overall lengths and crimps for 9 mm and .45 (FMJ, JHP, etc.) when I'm setting up new loads.  (See post from  REConley above.) I keep some of their factory loads in the ammo vault for measuring reference mostly.  My opinion is that they probably have the median number dialed in and it should not take much either way to find the best for my specific chamber / barrel setup.  Then again, I'm kinda lazy and don't do much fiddling around with changes once I find something that works. 

CR

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Post by Bigtrout on 7/26/2020, 7:54 am

I do know Berry's plated 115 RN, commercially boxed Rem and Win 115 RN all shoot very bad groups of 3"to 4" @ 25 yd. in my 5" RO and 5" S&W 986.  I now use HAP's exclusively and have gotten 2" groups @ 50 yd. on "top of my game" days.
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Post by Bigtrout on 7/26/2020, 7:56 am

I do know Berry's plated 115 RN, commercially boxed Rem and Win 115 RN all shoot very bad groups of 3"to 4" @ 25 yd. in my 5" RO and 5" S&W 986.  I now use HAP's exclusively and have gotten 2" groups @ 50 yd. from a rest on "top of my game" days.


Last edited by Bigtrout on 7/27/2020, 7:01 am; edited 1 time in total
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Post by LenV on 7/26/2020, 12:58 pm

I have seen great results with Hornady 147gr RNBT. The boat tail makes it work. Sierra Match King in 115gr RN another great choice. My Berretta shot best with them.

Len
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Post by S148 on 7/28/2020, 1:48 pm

My experience suggests it depends on the bullet and the gun. Some folks have had very good accuracy with Hornady 147 FMJ BTRN, but my Kart 9mm barrel hated them, at least with the loads I tried. Huge groups and shots missing the paper. Oddly, My Colt 38 Super liked them.

Sierra's 115 and 125 FMJ RN have shot well for me. A 38 Super load (in a Kart barrel) with 125 grain bullets put 25 shots in 1.41 inches at 25 yards (Ransom Rest), though they were loaded to Major power factor (1417 fps). 

So, your gun might find something it likes.

I haven't tried many loads with cast bullets.

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Post by bdrake on 7/28/2020, 9:12 pm

my 1911 9mm barrel/slide only shoots 124gr TC bullets at 1100fps decent enough for Bullseye work.  When I swap the barrel/slide combo out for 38 Super and then it loves 130gr RN bullets at 1215fps but for some reason that same bullet at 1100 fps won't even stay on paper at 50 yards.
the 9x19 barrel has a 1-10 twist rate while the 38 Super is running a 1:16 twist barrel.  
reasoning for the difference in accuracy?  the extra fps? or the lead in the barrel itself?  I'm not smart enough to say.  I tried to focus of finding a working load through trial and a lot of error.

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