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Discussion Starter #1
My neighbor wants me to order him a case of 40 S&W Gold Dots for his PPQ & HK VP40 SK. He asked me 2 questions, which one is the best defensive round and which had the least recoil. I don't shoot a 40 but I told him I'd try to find out which is recommended. Target Sports has a special on the 50 round boxes of LE Duty ammo and they list the muzzle energy and muzzle ft. lbs. as below. which one would be the best? Thanks,

180 gr. - vel. 1025/420 ft. lbs.
165 gr. - vel. 1150/484 ft. lbs.
155 gr. - vel. 1200/496 ft. lbs.

Thanks again,

Jim D
 

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I run 180 gr in all my 40s. Those G Dots have performed well for me.
 

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Both gentlemen are correct, the ft/lbs is the best indicator of recoil without actual use. The 180s listed are the ones likely to have the least recoil. Just curious, why doesn't he order his own ammo?
 

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Gold dots.
Hornady Critical Duty
Federal HST

I'm fond of DoubleTap, they use gold dot for most of their +p 9mm, I'd imagine their stuff in .40 would be similar.

I've had good results with Critical Duty in .40, used to carry it before I switched my guns over to 9mm....I'm not talking about the crap with the polymer filled tips...the regular JHP stuff. Hits hard, expands well.

The HST is good, it's probably better than Hornady, but I didn't test it nearly as much as the first two bands. Avoid the Federal Hydrashok like it's got Ebola....worthless ****, if you want my opinion.
 

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Discussion Starter #7
Both gentlemen are correct, the ft/lbs is the best indicator of recoil without actual use. The 180s listed are the ones likely to have the least recoil. Just curious, why doesn't he order his own ammo?
PPS1980,
He goes out of town a lot to work sometimes a month at a time & he never knows when. He needs someone that can sign for it.

Jim D
 

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Of the loads listed, the 180 grain should have the least recoil.
My experience has been the opposite. Usually the heavier the bullet the heavier the recoil.

180gr seems to be the most popular in LE.
 

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I dug out my old recoil calculation software and ran the numbers. The recoil energy from the various loads are below.


180 at 1025 = 7.16 foot pounds
165 at 1150 = 7.52 foot pounds
155 at 1200 = 7.26 foot pounds


The above figures assume a pistol weight 32 ounces, and 7 grains of smokeless powder per load.
 

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Discussion Starter #10
Thanks guys.
OK, how about stopping power assuming you put two rounds in the bread basket with medium to light weight clothing on?

Jim D
 

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I strongly doubt that actual stopping power can be calculated - in fact, I doubt that stopping power is a valid concept. I know of no formula for calculating stopping power for multiple projectile hits. However the Cooper short form of the Hatcher RSP formula yields the following results for single hits:

40 S&W 180 JHP at 1025fps = 28.98
40 S&W 165 JHP at 1150fps = 28.80
40 S&W 155 JHP at 1200 fps = 28.21
45 Auto 230 FMJ at 850 fps = 28.23
45 Auto 230 JHP at 850 fps = 39.04
38 Special 158 RNL at 850 fps = 13.51
9mm 115 FMJ at 1250 fps = 12.81

The formula does not yield percentage results. It is a method of comparing the relative stopping power of cartridges. Col. Cooper rated the 45 FMJ at about 90% for 1 shot stops and rated the 38 RNL at about 50%.
 

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For me personally, I carry 155 ot 165 grain Gold Dots. I did my own ballistic testing with the various weights and in the 180 grain design, I had issues with the bullet collapsing into itself rather than expanding because the hollow point channel is too sharp.
 
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