.40 vs .45 capacity question - XDTalk Forums

SA-XD · 07-02-2009, 04:26 PM

I was wondering if anyone could explain why the .45 is able to hold one more round than my .40 service when the .45 is a bigger round. It doesn't make sense to me.

DWARREN123 · 07-02-2009, 04:36 PM

Check grip size, or mag length.

**Lab_guy** · 07-02-2009, 04:45 PM

The original XD .40 was based on the 9mm frame which means it could only hold 12 rnd. The XD 45 was a different frame with slightly different dimensions and build from the ground up for .45 which means it was more effiecent in space. The XDM was build for .40 so it has this same benefit of being better at allocating space to the .40 which the 9mm benefits from since it is a smaller round.

rustygray · 07-02-2009, 04:47 PM

What he said times 2.

DNM · 07-02-2009, 05:03 PM

Quote:

Originally Posted by Lab_guy

The original XD .40 was based on the 9mm frame which means it could only hold 12 rnd. The XD 45 was a different frame with slightly different dimensions and build from the ground up for .45 which means it was more effiecent in space. The XDM was build for .40 so it has this same benefit of being better at allocating space to the .40 which the 9mm benefits from since it is a smaller round.

+1

There you have it. Couldn't have said it better myself.

I actually had this conversation with my wife last night after American Rifleman had a little blurp on the XD 45.

Johnnybgood · 07-02-2009, 05:40 PM

It is by design.

**ThumperIII** · 07-02-2009, 06:36 PM

A wider magazine allows the double stacked rounds to be distributed outward or sideways rather than higher or taller.

thelongone13 · 07-02-2009, 07:48 PM

Quote:

Originally Posted by Lab_guy

The original XD .40 was based on the 9mm frame which means it could only hold 12 rnd. The XD 45 was a different frame with slightly different dimensions and build from the ground up for .45 which means it was more effiecent in space. The XDM was build for .40 so it has this same benefit of being better at allocating space to the .40 which the 9mm benefits from since it is a smaller round.

Yep. I like it too. You can tell when a gun isn't made for .45 but shoots it anyway... Or so has been in my experience. Shoot a Glock 21 lol. All I think they did was widen the grip... The XD is a much more capable .45.

07-02-2009, 04:26 PM	#1
SA-XD XDTalk 500 Member Join Date: Jun 2009 Location: Kalamazoo, MI Posts: 598	.40 vs .45 capacity question I was wondering if anyone could explain why the .45 is able to hold one more round than my .40 service when the .45 is a bigger round. It doesn't make sense to me. __________________ If the Government ever comes to take your guns, give 'em the ammo first! A government that is big enough to give you everything you want, is strong enough to take everything you have. ΜΟΛΩΝ ΛΑΒΕ
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07-02-2009, 04:36 PM	#2
DWARREN123 XDTalk 1K Member Join Date: Dec 2008 Location: Clarksville TN Posts: 1,351	Check grip size, or mag length. __________________ HAVE A NICE DAY!
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07-02-2009, 04:45 PM	#3
Lab_guy XDTalk 100 Member Join Date: Aug 2007 Posts: 202	The original XD .40 was based on the 9mm frame which means it could only hold 12 rnd. The XD 45 was a different frame with slightly different dimensions and build from the ground up for .45 which means it was more effiecent in space. The XDM was build for .40 so it has this same benefit of being better at allocating space to the .40 which the 9mm benefits from since it is a smaller round. __________________ "Sometimes you win and sometimes you learn."
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07-02-2009, 04:47 PM	#4
rustygray XDTalk 100 Member Join Date: May 2008 Location: Georgia Posts: 105	Yep What he said times 2. __________________ Kindness is free. Gun control is hitting your target. My house, my rules, I do not shoot to wound. SA TRP 1911, Custom SA 1911, XD45, XD40, Mossberg 500A Desert, 500 black, Rem 700 .308, Custom Ar15, Bersa .380, Full Redneck Tactical SKS, Heritage .22Mag, Nylon 66, Mossberg .22, Marlin .22, Ruger MKI .22, H&R .22 snubby, 20ga Sears and Roebuck single shot, and a 1898 Iver Johnson .32 factory custom revolver. Oh and a few sling shots and a whole bunch of sharp things.
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07-02-2009, 05:40 PM	#6
Johnnybgood XDTalk 1K Member Join Date: Mar 2007 Location: North West Florida Posts: 1,087	It is by design. __________________ XD .40 SC Trijicon NS,Hard Chrome Slide by TRIPPS, Combat Carry Job by POWDER RIVER PRECISION. XD .45 Compact TFOS,NP3 Norton Special and Competition Trigger Job byROBAR. Ruger P345PR SOLD,Wish I hadn't Taurus PT 24/7 PRO .40 Cal. SOLD. Bersa Thunder .380 Savage 12 gage pump
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07-02-2009, 06:36 PM	#7
ThumperIII XDTalk 100 Member Join Date: Jul 2008 Location: Maryland Posts: 295	A wider magazine allows the double stacked rounds to be distributed outward or sideways rather than higher or taller. __________________ Thumper III XD-45acp Svc XDm-40SW Trijicon / PRP / PistolGear barrels / SuperTuck NRA Endowment Member
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