Speer list the 180 gr. Gold Dot bullet maximum charge of BE-86 as being 6 grains at a velocity of 1026 fps.  Which is the highest velocity of all the powders Speer tested.  Has anyone had any experience loading the 40S&W with BE-86?  I load the 10mm with BE-86 and have good results.

https://reloading-data.speer-ammo.com/downloads/speer/reloading-pdfs/Handgun/40_caliber-10mm_400_dia/40_SmithWesson_180.pdf

Glock is coming out with a new and improved Gen5 40S&W with a thicker slide.  Should be released in October.  The Gen5 should handle heaver than normal loads.  The 200gr. bullet loaded to normal 40S&W velocities are around 900 fps.  This seems a little on the slow side to me for a self defense load.  Would a 165 gr. bullet be a better choice for self defense?

Does anyone have any experience loading the 40S&W with the Gold Dot 200gr. bullet.  I have plenty of Alliant BE-86 powder on hand. Thank you much.

Quote from: AlinMi on February 20 2020 04:39:19 PM MST
Who's bonded bullet they using?

Speer Gold Dot 180gr. bullet.  My duty ammo is Speer 40S&W with this 180gr. bullet. So far we have had excellent results with this ammo. 

Here is a video on some test of Underwood ammo.  Notice that his chronograph reading of the Underwood 10mm 180gr. bonded bullet average was 1,204 fps. (at point 1:40 in video)  Which was close to my reading of 1,217 fps.

https://www.youtube.com/watch?v=KN4thm4J6ks

The Underwood ammo with a velocity at 1,217fps. is still a very potent round.  The bullet may even perform better at this velocity than at 1,300fps.?

Quote from: Graybeard on February 14 2020 10:14:13 AM MST
What gun and barrel length are you using? Underwood lists 1300fps for their 180 bonded HP.

I am using a stock Glock G20 gen4 with a 4.6" barrel.  It was about 36 degrees and I was using the Oehler proof chronograph (model 35P) with three Skyscreens III.  There was no indication of error, my chronograph is about 20 years old but seems to be working fine.  I heard that Underwood (internet rumor) is loading the 180gr. down for better performance.  On the Underwood box it did state 1300fps.

https://oehler-research.com

I chronographed the Underwood 180gr. bonded bullet this morning.  The velocity was @ 1,217 fps.  I should be able to replicate this load with 8.4gr. of BE-86, which I have Chronographed @ 1,204 fps.  Thanks everyone.

It looks like by Shadows pull down of the Underwood 180 Gold Dot that the cartridge contains approx. 8.7gr. of Longshot.  I should be able to duplicate that round and be safe according to the Hodgon website reloading information.  It might be tough getting the same velocity of the Underwood round with BE-86.  Thanks everyone. 

Thanks for all the information.  How does Longshot compare with BE-86 ?  I know BE-86 is faster burning, The Hodgon website shows the 10mm 180grn. starting load as 8.5 gr. of Longshot at 1,221fps 31,000PSI and a maximum load of 9.5gr. at 1,287 fps. 34,600 psi.   Do y'all think Longshot might be a better powder for more velocity?  How does it meter? 

I have purchase some Underwood 180grn. Bonded (Gold Dot) ammunition.  I would like to replicate it with handloads.  What would you recommend?  I like BE-86 powder, and have some on hand.  Thanks!

Thanks everyone for the info!
I did load up some rounds today and chonographed them.  I shot them out of my Glock G20 Gen4 ( all stock).
180 gr. Hornady XTP bullet
8.4 gr. of BE-86
New nickeled starline brass
CCI 300 primers
Velocity: 1,200 fps.

No signs of over pressure.  This seemed to be a very accurate and potent load.  I also have some 180 gr. Speer Gold Dot bullets I would like to try with this load.  I guess the Gold Dots will have about the same velocity as the XTP.

The next day I loaded some Speer 180 Gold Dots with the same load as above.  The Gold Dots had a average of 1,204 fps. out of my G20.  Very accurate round, no signs of over pressure.  I am very pleased with these loads. Thanks Guys!

Looking for a Full Power load for the 10mm 180gr. XTP with BE-86 that would be safe in the stock Glock G20 handgun?  Thanks.

Hornady is releasing a new line of handgun ammo called "Handgun Hunter".  The 10mm Auto load is  135gr. copper projectile !  It would be nice if Hornady would make these bullets available for reloading.  We should be able to get over 1,500 fps with them and the bullet still hold together.  What do you think.

https://www.hornady.com/ammunition/handgun/10mm-auto-135-gr-monoflex-handgun-hunter#!/

https://www.midwayusa.com/product/1021881012

Quote from: The_Shadow on January 16 2020 01:10:59 PM MST
BE-86 8.4 grains CCI 300 would be about 1230 fps seated to 1.2600"...I run a 22 lbs non captive spring for my G-20SF

Thanks Shadow, would this load be safe for the Glock G20 Gen4 without the 22 lbs spring?