Test Gun: Colt Delta Elite
Barrel length: 5 inches.
Ammunition: Underwood 200 and 220gr Hard Cast
Test media: 10% Clear Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1191, 1139fps
Gel Temperature 74 degrees

This test has to be one of the biggest pain in the ass test I have ever done. This is the third and last in the Underwood woods loads. The 10mm is probably the most recommended woods carry round for semi-auto pistols and for good reason. The 10mm is a powerful round capable of sending heavy bullets at high velocity giving deep penetration. However, as we have seen in the past test with the .45, .40 and 9mm provide a very good alternative.

With the 200gr loading, I got an average velocity of 1191fps with a high of 1200 and a low of 1183fps.


Ten yards off hand five shots 200gr

The 220gr round had a four-shot velocity (chorny problems) of 1139fps with a high of 1162fps and a low of 1108fps.


Ten yards off hand five shots 220gr



When shooting the 200gr load on paper at 10 yards I was having issues with the slide locking back with a loaded magazine. I decided to modify the slide lock to prevent this from happing. Once completing the modification, I had no more slide lock issues. I remember committing when I tested the Double Tap hard cast loading should not be necessary. However, if I wanted to shoot this type of ammo I guess it was necessary for my gun.



I also had two failures to eject with both the 200 and 220gr loadings. I have never had this happen in this gun before but I'm not convinced it was an ammo issue.



In the bare gel, the first found of the 200gr hard cast hit the gel at a velocity of 1189fps and 58.5 inches and had a recovered weight of 195.4 grains. The second round has a velocity of 1204fps and penetrated to 58 inches. The recovered weight of that bullet was 196.7 grains.



I had many issues shooting through the sheet metal. I tried three rounds and all of them curved to the left and exited the about midway through the second block.

I had similar issues with the 220gr bullets. Where the 200gr penetrated straight in the bare gel both of the 220gr bullets took a significant curve to the left also. Luckily I had shot both of them on the right side of the blocks or they wouldn't have been recovered either.

The first shot in the bare gel had a velocity of 1146fps and penetrated to 60 inches. Recovered weight was 217.7 grains. The second round's velocity was 1160fps and penetrated to 59.75 inches. Recovered weight was 216.6 grains.



With the 220gr shot through the sheet metal, I had very similar problems as with the 200gr loading. Three rounds were shot and only one was recovered. The one recovered bullet's velocity was 1172fps and it penetrated to 25 inches. Recovered weight was 202.4 grains. The second round curved upward and exited the top of the block about midway through the second block. The last round curved to the left, just like the 200gr bullets, and exited about midway through the second block. 

Test Gun: Delta Elite
Barrel length: 5 inches.
Ammunition: Magtech 10mm 180gr JHP.
Test media: 10% Clear Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1188fps
Gel Temperature 70 degrees.

https://generalcartridge.wordpress.com/2020/01/16/magtech-10mm-180gr-jhp-in-clear-ballistics-gel/

Test Gun: Delta Elite
Barrel length: 5 inches.
Ammunition: Federal 10mm 180gr Trophy Bonded JSP.
Test media: 10% Clear Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1216fps
Gel Temperature 70 degrees.

https://general-cartridge.com/2020/02/05/federal-10mm-180gr-trophy-bonded-jsp-in-clear-ballistics-gel/

Thanks Spins, look like a promising load!

Ken

Test Gun: Delta Elite
Barrel length: 5 inches.
Bullet: Sierra 40 cal 165gr JHP #8445 (Handload).
Test media: 10% Clear Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1280fps
Gel Temperature 71 degrees.

https://general-cartridge.com/2020/04/15/sierra-40-cal-165gr-jhp-in-clear-ballistics-gel-10mm-handload/

5pins, Those Sierra's were very popular in the early days for the 10mm handloaders, I loaded my share of them early on...

Test Gun: Glock 20.
Barrel length: 4.6 Inches.
Ammunition: Federal 10mm 200gr HST.
Test media: 10% Vyse Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1078fps
BB Calibration: 3.75inches

https://general-cartridge.com/2020/08/11/federal-10mm-200gr-hst-in-vyse-ballistics-gel/

For sure a formidable rd, Thanks!

Very nice 5pins...You didn't happen to do a pull down to see what powder and how much they were using?
Seeing how they almost duplicate the Speer 200 gr GD it may be the same loading...

Test Gun: Ruger LCP
Barrel length: 2.75 inches.
Ammunition: Remington .380 ACP 102gr Golden Saber
Test media: 10% Vyse Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 821fps
BB Calibration: 3.75 inches.

https://general-cartridge.com/2020/10/27/remington-380-acp-102gr-golden-saber-in-vyes-ballistics-gel/

Test Gun: Glock 20
Barrel length: 4.6 inches.
Ammunition: Cutting Edge 10MM 190gr PD solids.
Test media: 10% Clear Ballistics Gel.
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1089fps.

https://general-cartridge.com/2021/10/02/cutting-edge-10mm-190gr-pd-solid-in-clear-ballistics-gel/

Thanks for the range report and testing...For those in LEAD restricted areas they would be a good choice for sure!

Great work, Thanks man!

Test Gun: Glock 20
Barrel length:  4.9 inches.
Ammunition: Winchester 10mm 175gr Silvertip JHP (W10MMST)
Test media: 10% Vyse Ballistics Gel
Distance: 10 feet.
Chronograph: Caldwell Ballistic Precision Chronograph G2.
Five shot velocity average: 1160fps
BB Calibration: inches. 4 inches

https://general-cartridge.com/2022/04/12/winchester-10mm-175gr-silvertip-in-vyse-ballistics-gel

Awesome report 5pins!