.40 S&W Accuracy loading


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Jenrick
January 13, 2013, 01:29 AM
I've never heard of anyone using .40 S&W for match bullseye shooting, but I'm sure someone has tried it. Anyone have any recommendations for an accuracy load? I'll be shooting it out of an M&P fullsize if that helps.

-Jenrick

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rcmodel
January 13, 2013, 02:10 AM
No.
The caliber is not used in Bullseye shooting as far as I know.

The guns chambered in it are not SWC friendly, as the 9mm size guns adopted to the .40 do not feed .40 SWC bullets well, if at all.

And SWC bullets cut clean holes in Bullseye target scoring rings.
And that is often the deciding factor between winning and loosing a Bullseye match.

Were I trying for an accurate load?

I'd probably try a conventional 180 grain truncated cone jacketed bullet with a mild charge that just cycled the action.

rc

PO2Hammer
January 13, 2013, 02:52 AM
I've found that 3" groups at 25 yards are do-able with the right barrel and bullet. For accuracy I would start with the Hornady 180 HAP and Universal powder.
Does the M&P have land & groove rifling? If so try the Rainier 165 flat point. It shot great in my KKM 10mm to .40 conversion barrel and a P226, but plated .40's don't do very well in stock Glock polygonal barrels IME.

918v
January 13, 2013, 11:58 AM
U mean like this?


http://i8.photobucket.com/albums/a35/918v/photo-29.jpg


Glock 24 (factory bbl)
15 Yards
Benchrested

This load matches the 230 FMJ-Bullseye/231/Clays/whatever for accuracy out of a match grade 1911.

Jenrick
January 13, 2013, 01:14 PM
918v, very nice. Mind sharing your load?

-Jenrick

918v
January 13, 2013, 01:36 PM
I have two:

Armscor 165 FMJ FP
5grs 231
WSP
1.135" OAL

155gr Gold Dot
4grs Titegroup
WSP
1.120" OAL

I tried 180s but they not as accurate.
I tried other primers, but groups open up.
I tried other OALs but groups increase in size.

It's hard to get a factory Glock to shoot good. I read somewhere on the Internet that 165s are optimal for the 1-16" twist rate of the .40 S&W.

Jenrick
January 13, 2013, 01:43 PM
Thanks, I'll give those a try.

-Jenrick

918v
January 13, 2013, 01:54 PM
Let us know. I think TG is the more accurate powder with a variety of bullets. 231 is very load specific.

PO2Hammer
January 13, 2013, 03:04 PM
Nice shooting 918v.

Here's my best effort at 25 yards with a KKM converted G-29 (2 hand standing).
Rainier 165 flat point over Universal.
http://i376.photobucket.com/albums/oo205/FF1063/G-291.jpg

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