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Accurate #7 9 Major Recipe


tanfoglio1911

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17 hours ago, Stickman301 said:

 

I have shot both of these with a 124 JHP.  The 3N38 is a little softer and flatter but a pain in the ass to load.  AA#7 is closer to HS6 when running a 124 bullet.

 

9.9gr AA7.....124gr PD JHP.....1.180".....WSP

8.9gr 3N38....124gr PD JHP....1.190".....WSP.....compressed load

 

Tried in 2 different guns:

5" KKM barrel with 3 holes

4.5" SV Hybrid barrel with 2 holes

 

Hope this helps.

 

1.190 is really long for 9mm...

 

Have you had any trouble with bullets separating from the cases?

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Your longest OAL that stays together depends on the bullet chosen. No experience with PD's and 9 major though.

 

With MG JHP's, these OAL's work for me - no bullets have worked out of case on their own over years of loading many, many rounds.  

1.185 - 124 MG JHP

1.165 - 115 MG JHP

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1 hour ago, racer-x said:

 

With MG JHP's, these OAL's work for me 

 

1.165 - 115 MG JHP

 

I had to back the 115 MG JHP down to 1.165" or so, also.

 

Still loading the 124 gr's at same length - looks like I might be

able to make them a bit longer - thanks for info   :) 

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On March 21, 2018 at 6:53 AM, Hi-Power Jack said:

Have you successfully fired those 200-300 rounds ?

 

I backed off 1.175" because the bullets were falling out of the cases as

they were being fired - not enough grip on the bullet (115 gr MG JHP).

 

Never had any issues.

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  • 2 weeks later...
11 hours ago, Hi-Power Jack said:

 

I've had trouble with "smoking" in the humid summers of VA or FL.    :( 

Hmmm...haven’t tried them in the humid summer yet. I mostly shoot jacketed bullets but sometimes I cheapen it up a bit. Lol

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  • 1 month later...

I love AA7 in my 38 super. I love Win540 which is now HS6 for my steel loads. Win540/HS6 at a 6.0g charge under a 125grain Blue bullet at 1200fps is clean as hell.

10.3g of AA7 under a 125g blue bullet for 38 super is also very clean. I have a bunch loaded with WAC for 9 major to see the difference but may have to use AA7 for 9 major.

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  • 2 months later...
10 minutes ago, highhope said:

Thought FMJ is not good for open because of the exposed  lead.

I have no issues using FMJ. it's just dirty after the match, but that is not an issues since I clean my gun very often. I am now using RMR HP. 

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1 minute ago, tanfoglio1911 said:

I have no issues using FMJ. it's just dirty after the match, but that is not an issues since I clean my gun very often. I am now using RMR HP. 

yeah, I mean maybe not very healthy... 

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I run WAC, as the feel was better to me, butt thats just personal preference. The load I was using for AA 7 was 9.6 grns 124 PD jhp at 1.165 made about 170 Pf out of Akai V6 9mm. Produced a lot of gas but did have be more careful loading due to case capacity. 

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When I started shooting in the mid 90's, I remember open guys saying to avoid AA7 because it was abrasive, it wore out barrels too quickly, etc. Is this no longer the case? They only other powder that comes close in how much you can get in the case for a 170PF seems to be the unobtainable Vectan SP2. Guys that are using AA7 long term, are you noticing any loss of accuracy indicating a prematurely worn out barrel?

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For 9 major, I'm at 10.7 grains AA#7 under a MG 115 JHP @ 1.165 OAL with CCI SPP.

This load is around 1500fps and works the comp & popple holes great (full size CK Thunder Open).

115's are where its at for me. More powder, more gas & flatter shooting gun.

 

BTW, 10.7 grains sounds like a lot in a 9 case, but it is no trouble loading at all. 

A full to the top 9MM case holds 13.8 grains of AA#7 compared to only 10.2 grains 3N38.

 

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