Sunday, March 20, 2016

Winchester Silvertip JHP 10mm Auto Ammunition Test and Review


I was really looking forward to testing this load because I had read reports that the Winchester 10mm Silvertip JHP was one of the last full power 10mm loads coming out of the Win/Rem/Fed Big 3 US ammunition producers.  I had many offers from blog readers to supply me with the ammunition for the test, but I turned them all down and waited for new production from Winchester.  Winchester released new stocks of 10mm Silvertips in December 2015.  The ammunition tested was part of that production run so it should represent the current production ammunition.

Test Pistol:


Test Protocol:
Step 1)  Measure and record temperature and relative humidity.
Step 2)  Run a 5 shot velocity average over a ProChrono Digital Chronograph at a distance of 10 feet.
Step 3)  Run various terminal test shots, with and without simulated clothing barriers, into a block of Clear Ballistics Gel that has a similar density to 10% ordnance gelatin.  Shot distance is 10 feet.
Step 4)  Run a 600 fps calibration test bb shot into the Clear Ballistics gel block and record penetration depth to verify density.

Test Results:

Video Documentation of the Entire Test from Range to Bullet Recovery:

Direct Link to Video On YouTube

My Thoughts on This Load:
As you might expect, I was really disappointed in the performance of this load as tested through the Glock 29.  I fully expected to see velocity measurements lower than the 1290 feet per second velocity specified on the back of the box.  I wasn't expecting the hollow point cavities to completely plug with denim and fail to expand at lower velocities.

Pick or Pan:
This load might be great when fired from a 5.5 inch barrel that allows it to achieve 1290 feet per second muzzle velocity.  With the shorter 3.75 inch barrel of the Glock 29, the terminal performance was pretty dismal.  This load is not a good fit with a short barrel handgun so I will pan this load as a potential carry ammo for the Glock 29.



Disclaimer....This test should not be considered an endorsement or recommendation for the product(s) tested.  All tests represent actual performance in ballistics testing media.  Terminal performance in all other media will show different results.  It is up to each individual to make their own personal decision on which specific ammunition to use for their needs.  It's also critically important to test any ammo in YOUR SPECIFIC FIREARM before relying on it for any purpose.

Ammunition labeled as +P or +P+ should only be used in firearms that have been certified by the manufacturer as safe for the additional pressures generated by these ammunition types.

1 comment:

  1. The Silvertip 10mm load is pretty well known for not getting even close to 1290 fps. You might see that speed from a 10mm carbine but considering from the G29 it's giving you .40 ballistics, there's no way ~1.5" more barrel will make up 250+ fps. In the past for me velocity differences between the G20 and G29 run about 50-75 fps using the same load. Sadly, the Winchester Silvertip 10mm load has some wildly exaggerated velocity numbers and has for a LONG time. I'm beginning to wonder why Winchester still claims 1290 fps when it's nowhere close, maybe they leave it that way for sales. FWIW the factory 180gr Hornady XTP 10MM ran about 1100 fps from my G29.

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