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Tell me why I should like 40 better than 9

Discussion in 'Caliber Corner' started by KAK, Aug 25, 2010.

  1. KAK


    Aug 20, 2010
    Waco Texas
    I have been a 9mm guy for a long time. I really like the high capacity, Tell me why a 40 is a better choice for CCW.

    This will be fun. :popcorn:
  2. JK-linux


    Mar 5, 2009
    It's not unless you shoot more accurately with it, or your chosen 9mm is only capable of firing ammunition well under SAMMI standard pressure specifications.

  3. legion3


    Mar 31, 2000
    Parrish FL
    The 40 makes a bigger hole that's all I can come up with, however, for CCW the 40 has other attributes that would not make it my caliber of choice.

    So I can't help you much since I don't like the 40 better than the 9.
  4. KAK


    Aug 20, 2010
    Waco Texas
    I was just thinking about the fact that most attacks occur at point blank range. At the range where accuracy no longer matters I feel like a larger bullet would stop the threat faster. I thought about making every shot count at that range.

    I dont know. I guess Im thinking about getting 40s.
    G22, 23, 27, PM40 for carry.
  5. mikeyU


    Jul 19, 2007
    I like the .40 because it holds more rounds than a .45 with more power than a 9mm, you can get loads that mimic the .45 or 357 ballistically. There is alot of LE overrun ammo available for it.

    Now you will have people saying the 9mm is better because all handgun rounds are about the same, ya I concur but there is more energy/ velocity out of certain .40 loads, when the chips are down I would like the extra power, if it helps me great, if wont hurt. I like my .40's over my 9mm except for ammo cost, if you can train alot with a little more expensive ammo and be proficient with the .40, go for it, if not the 9mm will do fine in most self defense scenarios.

    I dont even want to get into this, its mostly personal preference when it comes down to it, they both kill, use the search function and look at all of the other posts on this topic please
  6. Daryl in Az

    Daryl in Az Enjoying life!

    Aug 31, 2007
    I won't tell you to carry a .40. Carry what works for you.

    If you have to ask someone else to explain it, you likely won't understand anyway.

    The .40 works fine for me, so if a 9mm works for you, then carry it.

  7. I agree with Daryl in Az. However I like the extra power!!! There are some people that say the 40 is only a little more powerful. I think it is 20 to 25% more powerful and that could make a difference.
    They come in the same size gun as the 9mm and I would give up 1 or 2 rounds for more power. It is a LITTLE harder to shoot than the 9 but that just takes practice!
  8. wrenrj1


    May 22, 2002
    Nothing matters if can't hit what you aim at. What ever accomplishes that task is best for you and determined by you. I do best with 9mm. Others will do best with .40 etc.
  9. pangloss9


    Mar 2, 2009
    middle TN
    Stick with 9mm. Cheaper ammo = more practice = better shooting.
  10. cmcinc


    Jan 10, 2007
  11. Brucev


    Jul 19, 2009
    I have had a boat load of 9mm and .45 ACP pistols. I am relatively new to .40 pistols. I had a borrowed P-226 which I liked, but not enough to buy. Found and bought a G-22RTF, because I liked it. Almost 2,000 rds. later, I think it is a excellent round. I like it better than the 9mm simply because I prefer a heavier bullet and a larger bore. I am not thrilled with the G-21. The G-22 offers excellent capacity, accuracy, power and a broad choice of bullet weight. What's not to like!
  12. orangevol


    Mar 6, 2009
    Southwest, TN
    A 9mm is 9mm a .40 S&W is 10mm. Bullet size is not the only factor, also consider the energy generated by the bullet. Most .40's generate higher energy partly due to greater bullet weights. Most .40's are 155 gr, 165gr, or 180gr. The lightest 9mm is 115gr and the heaviest is 147gr.

    Consider getting broadsided by an F150 1/2 ton or an F350 1 ton. If both trucks are travelling at the same speed the F350 will usually do more damage because it weighs twice as much. This is why a lot of folks prefer the slower moving but heavier .45 ACP.

    The "flying ashtray" as it is commonly referred to, usually weighs from 185 to 230gr. The 230gr is most common.
  13. GunFighter45ACP


    Jun 11, 2005
    D/FW, TX
    The .40 is essentially the same sized gun as a 9mm, yet it fires a larger & a heavier bullet.
  14. KAK


    Aug 20, 2010
    Waco Texas
    I like your analogy but the 45 travels much slower than a 9mm or a 40.
    Last edited: Aug 26, 2010
  15. Honestly, give me a good Glock, Sig, 1911 in 9mm, 357 Sig, 40 S&W or 45 ACP and I won't feel under gunned and I'll be completely happy. Especially with a Glock and a 1911. I think it's more important to have a gun (rifle, shotgun and pistol) that works first off and fits you secondly, caliber size comes in third place to me.

    You could have a 500 S&W, if you can't hit your target, the guns no good to you. You could have a G26 (9mm) and if you can shoot it and hit your target with it, it could be worth it's weight in gold.

    I carry either a G22, G27 (both 40 S&W) or a SW1911 45 ACP. I have a G31 barrel (357 Sig.) for my G22 too. I used to carried it with the 357 Sig. barrel in it a lot. I was getting 125 gr. Speer Gold Dots for $15 per 50 round box. That deal is no longer there, so I've kind of gone back to the 40 S&W. I also have a Lone Wolf 9mm conversion barrel for my G22. I shoot it a lot, however I've never carried with it in the gun.

    My next pistol is going to be a gen 3 G19. Once I get 500 to 1000 rounds through it, it might see more carry use then the others. It's smaller them the others except for the G27. I can afford to shoot it a lot more being a 9mm. I think the ammo industry has come a long way in the last 10 years and the performance playing field is more equal now then ever before. Just my $.02! :supergrin:
  16. cowboy1964


    Sep 4, 2009
    And if you get hit by either one it will have the same effect. You can't be "twice as dead".
    Last edited: Aug 26, 2010
  17. NonPCnraRN


    Aug 6, 2010
    My answer is based on the bullet with the largest meplat (flat part of bullet nose) I can find in loaded ammo. It is the size of the meplat x impact velocity that determines wound size. A 40 cal and 45 cal bullet with the same size meplat will create the same wound size. This has been proven by handgun hunting with hardcast bullets. I am not a hollowpoint guy. I know I will pizz off a lot of HP believers. I have heard all the overpenetration arguments before. The largest meplat I have found is the .32 inch meplat of DT 40 cal/10mm ammo. The meplat is larger than even the Jeff Cooper inspired truncated cone 230 gr 45 ACP bullet. A hollowpoint will vary in size based on variables such as velocity, getting plugged with clothing etc. A .32" meplat remains the same size regardless of velocity. Unlike RN ball ammo, flat point bullets tend to track straight even if bone is encountered. This has been proven by turning deer into venison sammiches with a 44 spl 250 gr Keith style SWC with a .30 inch meplat at 1000 fps. Like I stated in the beginning the WFNGC DT ammo with its large meplat is what made my decision. I still like my Milspec 1911 but I am working on some ammo with a 255 gr WFN with a .36" meplat (Beartooth). If someone came out with that bullet in 45 ACP ammo I would switch to a compact Glock 45. But even then I am faced with the choice of a gun holding 10 rounds vs 7 rounds. You said this was going to be fun, so here is some fuel for the fire.
    Last edited: Aug 26, 2010
  18. Really???

    and for fun;

    Comparing sectional densities, looks like the 10mm/180gr GD and .45/230gr GD exhibit much larger crush cavities and penetrate deeper than either the 9mm/147gr GD or .40/180gr GD.

    By changing to a heavy and slow 200gr XTP, (and don't forget the 200gr hardcast) the .40 does well as a trail carry with numbers the 9mm can't match;

    Bob :cowboy:
  19. glock031


    Jun 18, 2010
    No one should tell you what you should like. Find out why the FBI chooses the 40sw. It's not cost.
  20. A man after my own heart, ask and it shall be granted at an MV of 960fps;

    During our winter months when mountain lions come down from the mountains, I typically carry a 1911/.38Super/125grXTPs/~1450fps or .357mag/125gr/GD-XTP/1600s; but, but there's a scandium frame snub .44 Special/255gr hardcast as a BUG carried in a pocket because it is capable of penetrating through thick mesquite w/o deflecting or deforming. Running at a low 700fps, it penetrates deeper than a 9mm/115gr FMJ.



    The 180gr WFNGC (.270" meplat) is no slouch; it entered a cow leg bone here;


    and exited here;

    This particular .357mag load is good for about 45" of ballistic gel penetration.

    Bob :cowboy: