3.26 barrel

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HK P2000sk. Barrel length is 3.26. What would be a good choice for ammo in 9mm?

[gtmtnbiker98]

I use Speer Gold Dots, 124gr +P. My SK loves this round.

[Chuck Haggard]

Anything that works in a 4" or 5" barrel. 9mms don't really lose much velocity.

Check out Doc's chart on duty ammo and just pick one.

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Anything that works in a 4" or 5" barrel. 9mms don't really lose much velocity.

Check out Doc's chart on duty ammo and just pick one.

Have a link?

[Chuck Haggard]

Check out the entire terminal ballistics forum over at M4c;

http://www.m4carbine.net/forumdisplay.php?f=91

Lots of info on various tests thoughout the forum, and a sticky on duty ammo towards the top of the forum.

[JDM]

Have a link?
http://pistol-forum.com/showthread.php?99-Self-Defense-and-Duty-Loads-ballistics-info-by-DocGKR

[Sparks2112]

147g HST or ranger-t

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OK thanks I will look into this info. I always thought that slow moving projectiles were not affected by loss of length as much as fast projectiles.
This info does not address shorter barrel results.

[wrt81]

Speer has some Gold Dot's specifically for "short barrels" but I've never really seen any documentation, reviews ,or comparisons as to how it compares to the "normal" Gold Dots.

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Speer has some Gold Dot's specifically for "short barrels" but I've never really seen any documentation, reviews ,or comparisons as to how it compares to the "normal" Gold Dots.
Speer website specifies a 3.5" barrel at 124gr p+ for 9mm short barrel ammo.
I talked to a Speer LE rep and he told me -10% on the stated velocity from the standard barrel length in any caliber should provide good results.

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I appreciate the input concerning 124 p+ and 147 gr. Is there any test info to back up those choices?

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I appreciate the input concerning 124 p+ and 147 gr. Is there any test info to back up those choices?

Just found this

In a response to a question about which grain 9mm Ranger ammo to use in a short barreled pistol including 3.5" and 3", I got the following response from Winchester LE Ammo:
When we redesigned the Ranger T Series of ammunition we widened the velocity window under which the round would expand to allow for the slower velocities that shorter than standard barrels produce. What this means is that if you own a standard or sub compact pistol the round should have adequate expansion. In 9mm I would recommend the 147 grain bullet as it loses a lower velocity percentage than the faster lighter bullet in shorter than normal barrels. This is because the bullet has more dwell time in the bore and has a greater opportunity to burn the powder before the bullet exits the bore. Powder that is burned outside the bore does nothing for velocity. The lighter faster bullets generally have more powder to burn and since the lighter faster bullets have less time in the bore they are not efficient burners of powder in the shorter barrels.

We increased the velocity window under which the round would expand by increasing the size of the hollowpoint, tweaking the jacket thickness and the depth of the cuts on the inside of the jacket petal segments.

Sincerely,

Paul Nowak
Senior Technical Specialist
Winchester Law Enforcement Ammunition

I hope this helps.

[CTone03]

I'm late to the party, but I thought maybe some chronograph data from a 3" barreled Kahr M9 may help:

124 grain Speer Gold Dot +P
Ave 1,133 fps

124 grain Remington Golden Saber Bonded +P
Ave 1,062 fps

147 grain Winchester Ranger-T
Ave 926 fps

147 grain Federal HST +P
Ave 926 fps


You'll probably get a scootch more velocity out of the HK.


***ETA: these velocities are from 5-shot averages.

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I'm late to the party, but I thought maybe some chronograph data from a 3" barreled Kahr M9 may help:

124 grain Speer Gold Dot +P
Ave 1,133 fps

124 grain Remington Golden Saber Bonded +P
Ave 1,062 fps

147 grain Winchester Ranger-T
Ave 926 fps

147 grain Federal HST +P
Ave 926 fps


You'll probably get a scootch more velocity out of the HK.


***ETA: these velocities are from 5-shot averages.

Just did a check on the Gold Dot 124 and the ranger 147. The % lost in velocity was less in the 147 but sufficient in both. Another plus is that the 147 does better in multiple layers of denim supposedly because of a deeper cavity. I think you are correct I might pick up a little from the slightly longer barrel and polygonal rifling. Thanks for the info. You were right on time :)

[CTone03]

No problem! I went with the HST 147+Ps for both the Kahr and a G26. As you said, the 147s lost the least amount of velocity from the shorter barrels.