Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Classifieds
Media
New media
New comments
Search media
Log in
Register
What's New?
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More Options
Advertise with us
Contact Us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
The Range
Ammo & Reloading
10mm fun
Search titles only
By:
Reply to Thread
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Eagle Eye" data-source="post: 2881751" data-attributes="member: 34489"><p>Got to take some ballistic measurements of my 10mm G40 today. <img src="/images/smilies/biggrin.png" class="smilie" loading="lazy" alt=":D" title="Big Grin :D" data-shortname=":D" /></p><p></p><p>I worked up two loads. I am only reporting my maximum tested loads. I safely worked up in small increments and checked for signs of excessive pressure signs after each shot.</p><p></p><p><span style="font-size: 18px"><strong>1. 180 grain Speer Total Metal Jacket</strong></span></p><p><strong>14.5 grains aa#9 (5shots)</strong></p><p>max: 1339</p><p>min: 1313</p><p>average: 1326</p><p>sd: 12.2</p><p></p><p>second set of 5 shots with 14.5 grains aa#9</p><p>max: 1337</p><p>min: 1283</p><p>average: 1314</p><p>sd: 22.7</p><p></p><p><span style="font-size: 18px"><strong>2. 155 grain Hornady XTP</strong></span></p><p><strong>9.9 grains Power Pistol (5 shots)</strong></p><p>max: 1441</p><p>min: 1413</p><p>average: 1424</p><p>sd: 14.7</p><p></p><p>(5 shots)</p><p>max: 1424</p><p>min: 1373</p><p>average: 1410</p><p>sd: 21.1</p><p></p><p>The 155 grain load shot like butter. It not as hot as the underwood 155 XTP's @1500fps, but its not far off!</p><p>The G40 has a 6inch barrel, no idea at what barrel length the underwood ammo is tested at (probably 5 inch).</p><p>I saw no warning signs so i may push this one a little bit more, although the Hornady reloading manual lists 10 grains of PP as the max load.</p><p></p><p>I think I will leave the 180 gain load as is, although the max load in the hornady manual is 14.9 grains.</p><p></p><p>Either would make for a good companion in the woods<img src="/images/smilies/redface.png" class="smilie" loading="lazy" alt=":o" title="Embarrassment :o" data-shortname=":o" /></p></blockquote><p></p>
[QUOTE="Eagle Eye, post: 2881751, member: 34489"] Got to take some ballistic measurements of my 10mm G40 today. :D I worked up two loads. I am only reporting my maximum tested loads. I safely worked up in small increments and checked for signs of excessive pressure signs after each shot. [SIZE=5][B]1. 180 grain Speer Total Metal Jacket[/B][/SIZE] [B]14.5 grains aa#9 (5shots)[/B] max: 1339 min: 1313 average: 1326 sd: 12.2 second set of 5 shots with 14.5 grains aa#9 max: 1337 min: 1283 average: 1314 sd: 22.7 [SIZE=5][B]2. 155 grain Hornady XTP[/B][/SIZE] [B]9.9 grains Power Pistol (5 shots)[/B] max: 1441 min: 1413 average: 1424 sd: 14.7 (5 shots) max: 1424 min: 1373 average: 1410 sd: 21.1 The 155 grain load shot like butter. It not as hot as the underwood 155 XTP's @1500fps, but its not far off! The G40 has a 6inch barrel, no idea at what barrel length the underwood ammo is tested at (probably 5 inch). I saw no warning signs so i may push this one a little bit more, although the Hornady reloading manual lists 10 grains of PP as the max load. I think I will leave the 180 gain load as is, although the max load in the hornady manual is 14.9 grains. Either would make for a good companion in the woods:o [/QUOTE]
Insert Quotes…
Verification
Post Reply
Forums
The Range
Ammo & Reloading
10mm fun
Search titles only
By:
Top
Bottom