Home Forums Hunting & Shooting Handguns 180 XTP at 1160FPS or 1287FPS with Longshot.

Anyone use Longshot to reload the 40SW?

Looking at Hogdon load data with a 40SW and a 4 inch barrel you can get 1160FPS at 32,350 PSI using 8.0 grains, interestingly the 10mm with 9.5 grains of same powder and 5 inch barrel only give 1287FPS with the XTP at 34,600PSI. Longshot looks like a good powder for this bullet weight.

Interesting you can get 90% of the velocity with 50% of the pistol weight using a 40SW in this bullet weight.

It can do a lot better than Hodgdon's data implies in the 10mm, and some others like AA9 and AA7 can push a 180 a lot faster than that.

Despite what you think the load data is implying, a .40 is not 90% of a 10mm, and a 40 S&W pistol does not weigh only half of what a 10mm pistol weighs.

Longshot is a pretty decent powder for both cartidges though, certainly one of the better choices.

I mean...its what the Hogdon website says is the maximum load for both, I would presume they know what they are talking about? Also a G23 weights 24 ounces while the new ruger 10 weights 44 ounces. Just sayin is all but willing to listen if there is some wisdom I am missing....

Probably comparing the G23 with a Glock 29 would be a more apples-to-apples comparison as far as weight goes.

Either way, that's nice performance from a 40 SW.

Yes, it's certainly good performance for a 40 S&W. It's not top end performance for a 10mm; I'm pushing 200 gr bullets to that speed in 10mm from a shorter barrel.

I could find an example of a heavy 40 S&W to compare to a G20 or G29 to "prove" a 40 weighs more than a 10mm, but it wouldn't mean any more than your comparison Jimmy. Glock lists the G29 as less than 27 ounces, is that 50% more than your G23?

Here's a more realistic look at these; compare Underwood's 180gr loads of 1100 fps for the 40 and 1300 fps for the 10mm:

https://underwoodammo.com/shop/40-sw-180-grain-bonded-jacketed-hollow-point/

https://underwoodammo.com/shop/10mm-auto-180-grain-xtp-jacketed-hollow-point/

That's ~40% more power to the 10mm, for another 3 ounces of pistol if it's a Glock, or no perceptible difference if it's a 1911.

I was doing some google-fu. Seems the loaded weight of a G23 and G29 are both around 32 oz, give or take an ounce for ammo weight.

The 23 gives a few more pokes, the 29 hits harder. Take your pick.

I was using the reloading web site. I bought a pound of longshot this afternoon. I get the 1300 fps but was going off hodgdons maximum loads. I just don't think I need a 10 based on a 180 at 1100.

I did find max pressure for the 10 is 37,500 psi per saami and 35,000 for the 40 smith and Wesson. Interesting that the hogdon loads are below this for both 10 and 40.

Sure you do with all of the weight savings.

The 40 is a way more versatile cartridge than it's given credit for. I liked the 10mm in the early 90's but shot it with full snort Norma loads. Watering it down makes it an expensive to shoot 40, more than anything else.

The "weight " claim is obviously rubbish. My M610 cares less load wise.

I did not mean to insult the venerable 10mm simply to point out that the 40SW could according to material listed on a major powder manufacturers website be loaded to 90% of the velocity that their maximum 10mm load was listed at and this is comparing a 4 inch barreled gun to a 5 inch barreled 10mm! In addition rather than carry a 44 ounce Ruger 10mm 1911, you could carry a 23 ounce G23 or sure a better comparison would be the 30 ounce G20 with a 4.6 inch long barrel. OTOH many of the 10's are quite heavy for the power they produce. The 10mm is not the 41 magnum or the 44 magnum and I own a 44 magnum. Like Sarge said above I think a lot of people overlook the capabilities of the 40 while most are shooting store bought 10mm practice ammo at 40 speeds.

Those are good speeds. Underwood ammo shows 1100 fps for a 180 grain JHP. The 10mm shows 1300 fps. I didn't see a barrel length listed.

I'm 20 grains heavier across the board but use Longshot in my 40 to fire 200 grain bullets to 1040 fps and 1244 fps for the 200's in my 10mm, my 40 is a P226 with a 4.25"? barrel, 10mm is a 5" barreled 1911.

decide what is more important to you energy or second shot time on target.

shoot both the Glock and Delta on 10, Glock will swell the case heads before Delta

case heads in 40, as a result of the small primer, have thicker web areas than 10 cases, in special cases, when rebuilding 1911s, longer link pins in combination with compensators can cause higher firing pin hits, resulting in a "rebore" and fitting of the firing pin.

40 makes easy major with a wide range of powders in my STIs throat freebore, 180 or 200 gr and seated out.

As above, store 10mm is loaded way down.

But I am glad to see the 10mm "reborn"

Jimmy this isn't the first time you've tried to justify a 40 being almost as good as a 10mm.

Was it just last year when you claimed a 40 was just as powerful as a 10mm and sometimes more? Too much looking at one data source, and not enough actual shooting.

I like the 10mm, but your first line is why I carry a 9mm.

The second line may be true in the old gen2 and early gen3 Glocks, but not in the newer stuff; i.e. that statement hasn't been true in at least 15-20 years, from personal experience.

My main 10mm load is a 200gr at 1275 fps in a stock G20 barrel, and 1350 from the 6.5" long slide. Neither one swells the case head or any other pressure sign, but that load is NOT safe in a Delta Elite.



They'd be service length barrels; Underwood is pretty honest about the velocity of their ammo in common pistols rather than test barrels. That 1300 fps load is significantly faster in my 6.5" barrel.

yup its been about 20 years.

Know anyone who wants to buy a 200 gr. NEI 4 bullet mould?

but yondering I love the conversations, its more fun sometimes than arguing with my friends at deer camp! I have had a couple of 10's myself and would consider the 40MOS in the future. Right now I am doing things backwards got the powder, dies, getting ready to buy 500 170 grain LSWC missouri coated bullets.

Serious question though, I had avoided the glock 40's for a while due to the issue of more of them blowing up than 9mm's, did someone say that the cases are better supported these days?