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View Full Version : using RED DOT powder in .40 S&W...it WORKS!



mozeppa
02-01-2020, 04:59 PM
i've looked in a lot of books ...online....anywhere i could.

there just isn't much out there for the .40 S&W that uses MY parameters. (your mileage might vary!)

so i worked up my own data block for using red dot in my STI trojan auto pistol.

1911 style platform single stack........... here's a pix of the firearm,....

and also here's the result of working up a load using alliant's red dot powder.

recoil is NOT bad at all!
at 5.5 grains in the case .....it fills up the area under the boolit nicely without compressing the powder.






got questions?

35remington
02-01-2020, 05:20 PM
I do find that 4.1 grains cycles Glock 22s and 23s and my M and Ps (3.6 and 4.25) and 40 Shield with a 175 Lee at around 900-920 fps depending upon gun. Cheap to shoot and not at all hard on the pistols.

The 40 seems particularly barrel length efficient.

scattershot
02-01-2020, 05:31 PM
I use 4.0 Red Dot with a 75/180 grain bullet. It’s my go-to load in this caliber. I figure about 850 fps.

jonp
02-01-2020, 07:21 PM
4 grs works in my full size SW. I've not found many pistols that I can't get Promo or Red Dot to work in.

bluelund79
02-01-2020, 08:25 PM
Now that is a great sounding load. Especially with the 175gr load. Thanks for sharing.

Ed_Shot
02-01-2020, 09:33 PM
+1 for Red Dot/Promo in 40 SW. My go to load is the Lyman 401043 (170 gr) over Promo 4.1 gr. It chrony's @990 fps in my G22.

Mk42gunner
02-01-2020, 09:56 PM
I am not surprised that Red Dot works in the .40S&W. Way back in the dark ages when it first came out, a buddy and I burned at least one 8lb keg of Green Dot through our .40S&W's. Load data for a new cartridge was a heck of a lot harder to find in pre-internet days.

I always thought that most powders that work in the .45 will work in the .40, the trick is finding safe data.

Robert

GhostHawk
02-01-2020, 10:10 PM
I tried going low with Red Dot in the .40sw, at 4 gr I had sooty cases. Went up to 4.5 and lost the soot. Similar story with .45acp and 230 gr, I run 5 gr in that now.

All shot well, just did not like the sooty cases.

In fact I have yet to find a cartridge or caliber that Red Dot has not worked well in. It just may not cycle rifle actions ie SKS.

Turn the gas off and tis a great straight pull bolt action with better than average accuracy.

Pistol caliber Carbines like the Hipoint's have no issues at all with 9mm, .40sw, or .45acp.
But at times less is more accuracy wise.
That is my experience. YMMV