AA#7 for .357 mag?

[mxjunky78]

Anyone use AA#7 for .357 mag? What's a good load using either 125 jacketed or 158 lead swc? Thanks in advance.

 

[ArchAngelCD]

Plenty of load data available on the Accurate Site for that powder.

While AA#7 will work fairly well for the .357 Magnum if you're looking for a full power loads using Accurate powders you will want to look into using AA#9.

 

[res7s]

The Accurate site shows 9.1-10.1gr with a 158gr SWC. I use a two charges from that range depending on the bullet's construction. You'll need to work up tour own load and find the one that works best with your bullets.

 

[mxjunky78]

I've printed the whole manual from Accurate. I was just wondering if someone had some loads they wanted to share. Would you compare AA#9 to H110 or 2400?

 

[J Paul B]

AA7 in 357 mag

I've used it with 125 HDY XTP, 12.0 grains and it shot very well in my SW 686 - 6" barrel- most accurate load I've come up with so far. Plan to try it with Berrys 125 TP bullets next.

 

[Captcurt]

I've printed the whole manual from Accurate. I was just wondering if someone had some loads they wanted to share. Would you compare AA#9 to H110 or 2400?

Both H110 and 2400 can give you more speed with the heavier bullets, but I must confess that my deer load is 12grs of AA#9 under a 180 gr Hornady XTP. This is out of a 6" Ruger GP100 and chronos at 1150 fps. I could crank another 100+ fps by going to H110, but this load shoots so good that I don't want to change.

 

[zeke]

Another user of the 12.0-12.1 gns AA7 under 125 jacketed. With Fed mag primer, extremely accurate.

 

[mxjunky78]

I've used it with 125 HDY XTP, 12.0 grains and it shot very well in my SW 686 - 6" barrel- most accurate load I've come up with so far. Plan to try it with Berrys 125 TP bullets next.

How's the recoil?

 

[zxcvbob]

It works very well for almost-full-power loads. It's about the same as Blue Dot but without all of BD's bad habits.

You will have to look up the load data; my AA#7 is pulldown 9mm powder and runs a little fast, so my data is no good except with this lot number. (glad I bought 16 pounds of it)

 

[SHR970]

AA#7 is more akin to Blue Dot in burn rate and bullet velocity (actually a bit faster velocity wise) without the flash that BD is known for. I have burned quite a bit of it in my SP101 under 125 gr. and 158 gr. JHP's.

My load data is a bit on the warm side so I'll refrain from sharing it (it is a fair bit over current published max.). I just started on a new 8 lb. jug so I have to work up again. I am also currently stocked with Federal primers; not the CCI and Win. primers that my original loads were built on. Federal primers are known to be a bit soft and will show "pressure signs" before CCI or Win. so I have two variables with which to contend. Therefore prudence dictates that I do not share my data and advise you to work with published data and work up accordingly.

Edit to add: One aside, AA#7 is not "peaky" like BlueDot...if you hit pressure signs back down a few tenths. There is also no reason to use magnum primers with this powder.

 

[mxjunky78]

Thanks for the replies guess I'll have to workup to around 12gr. That seems to be the common load with 125 jacketed. Thanks again guys.

 

[joneb]

12grs of AA#9 under a 180 gr Hornady XTP. This is out of a 6" Ruger GP100 and chronos at 1150 fps.

I load 12.9gr of AA#9 with 180gr XTP/HP in a 2.75" Ruger Sec. Six.

 

[Captcurt]

I load 12.9gr of AA#9 with 180gr XTP/HP in a 2.75" Ruger Sec. Six.

I bet that has some buck. I have shot 13 gr but my 6" has a reddot so the recoil is pretty mild.

 

[joneb]

I've loaded Remington 158gr JHP for 357 mag using SPP at 10.2gr of AA#7 the accuracy is outstanding. The Rem 158 jhp seats deeper in the case than say a Hornady xtp or Nosler jhp.

 

[sghart3578]

357 mag AA#7

My favorite load is 11.5 gr Accurate #7 with 158 gr JHP. Very accurate. I also lad 13.2 gr of Accurate #7 with 125 gr JHP. Measured velocity is 1150 fps with 158 gr and 1400 fps with 125 gr. This is from a 4" S&W 586, Zero bullets, mixed headstamp brass and Winchester small pistol magnum primers. Very clean and accurate.