Summer vs. Winter defensive rounds

Summer vs. Winter defensive rounds

This is a discussion on Summer vs. Winter defensive rounds within the Defensive Ammunition & Ballistics forums, part of the Defensive Carry Discussions category; Another thread got me to thinking about this. Since I didn't want to hijack that thread, here is this one. Also, please do not turn ...

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  1. #1
    Member Array radshooter's Avatar
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    Summer vs. Winter defensive rounds

    Another thread got me to thinking about this. Since I didn't want to hijack that thread, here is this one. Also, please do not turn this into a brand war or caliber war.

    That being said.....I live where there is a big temperature extreme from winter to summer. T-shirts or less in summer, and heavy parkas and sweatshirts in the winter. I typically carry JHP in my 1911 .45 for self defense. However, seeing all the parkas and mukluks running around made me think about switching to FMJ rounds until the weather warms up again in the spring.

    Are there any studies (or your experiences) regarding penetration of heavy clothing? I am thinking the FMJ will penetrate the coats better than a JHP would. Granted, the JHP will definitely penetrate, but would it still have enough oomph left to get the job done?

    Let me know what y'all think.

    Thanks


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    I am far from an expert on ballistics, but here is my thinking on this issue.

    I use the same ammo (some variety of 230gr JHP, I'm partial to Winchester loads) year round. If my 230gr hollowpoint gets plugged and doesn't expand, due to winter clothing, it is probably going to do about the same damage as a 230gr FMJ, since weight and velocity are about the same. If it does expand, great, it works even better for me.

    I know that some people around here have tested this, that is just the way I see it.
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  3. #3
    Member Array radshooter's Avatar
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    Good point. I hadn't thought about a JHP "converting" to hardball.

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    Yeah, my basic understanding, and it is very basic, is that it takes something kind of liquidy to really get HP's to expand (like body tissue), which is why sometimes shooting them into like wood will just plug them usually. And clothing I would thing wouldn't get it to start to expand, so you would in essence have FMJ of the same weight. I am sure someone with a lot more technical expertise can shed more light on this, but that is just my understanding.
    Fortes Fortuna Juvat

    Former, USMC 0311, OIF/OEF vet
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    Member Array 3rik's Avatar
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    http://www.hornady.com/store/critical_defense/

    I picked up some of these in .38 a while back. Pretty sweet.

    And I'm no expert at all but I'm thinking the higher velocity calibers like 9mm or .45 shouldn't have too much trouble piercing a few layers of clothing and still punching flesh with enough force to do what they're intended.
    "Obviously you're not a golfer." -The Dude

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    Fortunately, FL does not require much change in clothing, thus, no change in carry, In reality though, when visiting my son in IN, I don't worry about changing my carry or ammo...up close it isn't going to make much of a difference.IMHO
    The last Blood Moon Tetrad for this millennium starts in April 2014 and ends in September 2015...according to NASA.

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    VIP Member Array livewire's Avatar
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    I think one of the arguments for changing ammo seasonally is that the act of plugging the hollowpoint creates a lot of drag while in the coat, burning up energy that doesn't translate into penetration on the wearer. In that case, ball ammo would be superior because it pushes through the coat with more energy.

    Disclaimer: I do not change my ammo choice in winter.

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    Member Array 3rik's Avatar
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    Quote Originally Posted by retsupt99 View Post
    Fortunately, FL does not require much change in clothing, thus, no change in carry, ...
    Rub it in why don't ya!
    "Obviously you're not a golfer." -The Dude

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    VIP Member Array livewire's Avatar
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    I keep threatening to move to Miami. . . twice as often this time of year.

    And 3rik, you don't know what winter is over there :) When I lived in Seattle, I refereed to it as the 'rainy season' :-D

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    Ex Member Array BikerRN's Avatar
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    If using a decent hollowpoint, I find the question about summer and winter rounds to be much ado about nothing.

    I think, personal opinion only here, that too much is made of the summer/winter issue with regard to the service caliber rounds. I am also of the opinion that penetration is too over-rated in the various test methodolgies that use ballistic gelatin as their medium of choice, but I'm certainly no expert. Given as to how over-penatrative FMJ is in the .45 ACP, and the fact that if a hollowpoint round "clogs" it becomes in a sense an FMJ round, I'm inclined to stick with the hollowpoint all year long.

    Biker

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    Distinguished Member Array Knightrider's Avatar
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    The way I see it, what bites you in the summer will bite you in the winter. Thus I don't change out my ammo.
    Glock: G22 .40 S&W and G23 .40 S&W Sig Sauer: P938 9mm Smith and Wesson: Model 437 .38 Spl, Model 65 357 Mag, and Sigma SW9VE 9mm

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    Distinguished Member Array alachner's Avatar
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    I would use the same ammo. It's not like in Winter people use body armor and it takes liquid (body tissue) to make JHP expand.
    "If you carry a gun, people will call you paranoid. That's ridiculous... If I have a gun, what in the hell do I have to be paranoid for?" [Clint Smith - Thunder Ranch]

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    Quote Originally Posted by 3rik View Post
    Rub it in why don't ya!




    ...although it's not quite like that, THIS WEEK!
    The last Blood Moon Tetrad for this millennium starts in April 2014 and ends in September 2015...according to NASA.

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    GM
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    I do not change ammo at all.


    Quote Originally Posted by retsupt99 View Post




    ...although it's not quite like that, THIS WEEK!
    I think the weather in FL has been gorgeous this week . But it should be even better with some snow (just about one or two feet ). Nothing better than a white Christmas

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    VIP Member Array glockman10mm's Avatar
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    As others stated, no need to switch.

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