How come there are no RN .40 S&W bullets? - The Firearms Forum

stev32k · 11-06-2012, 09:47 AM

I was trying to buy .40 S&W bullets and I prefer a round nose because I think it has better aerodynamics, but I can't find them anywhere. The only 40s I can find have either a flat point or flat nose. Anybody know why?

ozo · 11-06-2012, 09:51 AM

There are....here is just one example...
http://www.berrysmfg.com/product-i14...55gr_HBRN.aspx

stev32k · 11-06-2012, 10:25 AM

I should have specified better. I'm looking for a 180 gr. RN plated or jacket. I might settle for 165 gr but 155 is a little too light for me.

Alpo · 11-11-2012, 10:24 AM

Many years back, some bullet-type scientists noticed that 9mm Luger was inaccurate as hell. At least, it was with standard RN ball ammo. For some reason it was quite accurate with most JHP.

Why would this be, they wondered. Could it be the shape of the bullet made the difference? Because, even though there WERE RN hollow points, most 9mm JHPs looked quite a bit like this.

So they made up some solid bullets, with that shape. Low and behold, they also were accurate.

Thus was born the "Truncated Cone" bullet shape.

They found that FMJ TC bullets fed just as well, in un-modified guns, as FMJ RN, and were more accurate.

This discovery was made BEFORE the 40 S&W was invented. Since RN bullets are, compared to TC bullets, extremely inaccurate, why would they bother even making RN for this new round. So, pretty much, they don't.

JLA · 11-11-2012, 12:44 PM

Its a truncated conical design. It increases meplat diameter and terminal perfirmance of the round. Loaded with round nose projectiles im afraid the .40 is just a slightly beefier 9mm.

Load a TC in a .45ACP and youve got one hell of a manstopper round.

johnnybocce · 11-11-2012, 01:35 PM

That is why this site is such an asset to all us guys who have questions. The wealth of knowledge from its members is really appreciated. Keep up the good work. JohnnyBocce

time2shoot · 11-11-2012, 03:12 PM

Quote:

Originally Posted by JLA

Its a truncated conical design. It increases meplat diameter and terminal perfirmance of the round. Loaded with round nose projectiles im afraid the .40 is just a slightly beefier 9mm.

Load a TC in a .45ACP and youve got one hell of a manstopper round.

I do.
I call them my social rounds

JLA · 11-11-2012, 04:24 PM

I liek the golden sabers for the .45 ACP. they look like lugnuts.

11-06-2012, 09:47 AM	#1
stev32k V.I.P. Member Join Date: Oct 2012 Location: Mobile, AL Posts: 371	How come there are no RN .40 S&W bullets? I was trying to buy .40 S&W bullets and I prefer a round nose because I think it has better aerodynamics, but I can't find them anywhere. The only 40s I can find have either a flat point or flat nose. Anybody know why? -->

11-06-2012, 09:51 AM	#2
ozo Advanced Senior Member Join Date: Jan 2011 Location: Nashville TN Posts: 2,770	Re: How come there are no RN .40 S&W bullets? There are....here is just one example... http://www.berrysmfg.com/product-i14...55gr_HBRN.aspx __________________ http://www.nranews.com/#/nranews, "ozo. you're off your rocker sir." -johnlives4christ http://www.prisonplanet.com/ -America,Bless GOD-

11-06-2012, 10:25 AM	#3
stev32k V.I.P. Member Join Date: Oct 2012 Location: Mobile, AL Posts: 371	Re: How come there are no RN .40 S&W bullets? I should have specified better. I'm looking for a 180 gr. RN plated or jacket. I might settle for 165 gr but 155 is a little too light for me.

11-11-2012, 10:24 AM	#4
Alpo Advanced Senior Member Join Date: Feb 2007 Location: NW Florida Posts: 8,664	Re: How come there are no RN .40 S&W bullets? Many years back, some bullet-type scientists noticed that 9mm Luger was inaccurate as hell. At least, it was with standard RN ball ammo. For some reason it was quite accurate with most JHP. Why would this be, they wondered. Could it be the shape of the bullet made the difference? Because, even though there WERE RN hollow points, most 9mm JHPs looked quite a bit like this. So they made up some solid bullets, with that shape. Low and behold, they also were accurate. Thus was born the "Truncated Cone" bullet shape. They found that FMJ TC bullets fed just as well, in un-modified guns, as FMJ RN, and were more accurate. This discovery was made BEFORE the 40 S&W was invented. Since RN bullets are, compared to TC bullets, extremely inaccurate, why would they bother even making RN for this new round. So, pretty much, they don't. __________________ Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297 I always take precautions. Beware the Evil Bullet Fairies.

11-11-2012, 12:44 PM	#5
JLA TFF Moderator/Host Join Date: Feb 2007 Location: Heart Of Texas Contributor Posts: 17,320	Re: How come there are no RN .40 S&W bullets? Its a truncated conical design. It increases meplat diameter and terminal perfirmance of the round. Loaded with round nose projectiles im afraid the .40 is just a slightly beefier 9mm. Load a TC in a .45ACP and youve got one hell of a manstopper round. __________________ It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze. The latest caliber or gear is no substitute for experience and skill. Rifles and cartridges don't make hits -- shooters do. Fact of life: After Monday and Tuesday, even the calendar says WTF!

11-11-2012, 01:35 PM	#6
johnnybocce Member Join Date: Aug 2009 Posts: 32	Re: How come there are no RN .40 S&W bullets? That is why this site is such an asset to all us guys who have questions. The wealth of knowledge from its members is really appreciated. Keep up the good work. JohnnyBocce

11-11-2012, 04:24 PM	#8
JLA TFF Moderator/Host Join Date: Feb 2007 Location: Heart Of Texas Contributor Posts: 17,320	Re: How come there are no RN .40 S&W bullets? I liek the golden sabers for the .45 ACP. they look like lugnuts. __________________ It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze. The latest caliber or gear is no substitute for experience and skill. Rifles and cartridges don't make hits -- shooters do. Fact of life: After Monday and Tuesday, even the calendar says WTF!