General Purpose AR Round - Page 2

bfoosh006 · February 13, 2017, 01:03 PM

I suggest trying some 64gr Gold Dots. PSA routinely has them on sale for "Buy 10 , free shipping at $10.99 per box.

And as for 55gr FMJ... for the most part they are ok... but there are more consistently expanding bullets out there... IE Fusion and GD.

The 55gr FMJ is a "Yaw" dependent bullet.. which means it can perform differently depending on its impact angle ( Yaw )

This image shows what I mean... and the yaw angle cannot be controlled as it is just how the bullet travels.

Looking at the image.... you can see a huge difference in the 55gr FMJ's behavior... sometimes it works great ( High Yaw ) sometimes it doesn't .. ( Low Yaw )

That is what I mean by "but there are more consistently expanding bullets out there... IE Fusion and GD."

A Gold Dot / Fusion bullet will expand in a much more predictable way... since it is not a "Yaw" dependent bullet.

Even the SMK 69gr and 77gr can be yaw dependent ( but to a lesser degree then the 55gr FMJ ) ... the Sierra TMK is designed to be an improvement on ballistic the performance of the SMK.

IMHO, you would be served quite well with a 64gr GD for SD and your Coyotes ( as long as it fires accurately from your rifle.

If your needed more penetration... stepping up to a 75gr GD will serve you well.

FYI... Ballistic gel info ...( Look and click clear down at the bottom of the page under FBI Test Protocol. )

http://www.le.vistaoutdoor.com/ammun...C24448%2C24475

Any other questions or thoughts... just ask.

ejb69 · February 13, 2017, 05:04 PM

Check your local hunting regs before using FMJ bullets for hunting.

Panfisher · February 13, 2017, 09:50 PM

I do have separate ammo for deer hunting, otherwise my AR eats a steady diet of 55 gn HP of various manufacture depending on what is on sale, all reloads.

Tallest · February 14, 2017, 01:07 PM

Wow - more good stuff. Thanks, Folks!

bamaranger- It's great country, you're right! And I just picked up some 55 grn stuff to try out yesterday, Thanks!

bfoosh006 - really interesting, and enlightening! Thank you!

bfoosh006 · February 15, 2017, 03:00 PM

On a side note.... the "Newly" issued M855A1 is no where near as yaw dependent.

IMHO, it is a very good replacement for the M855 and M193.

https://www.youtube.com/watch?v=9_epymWduYs

Verse Level III AR500...

https://www.youtube.com/watch?v=e0gxeSpjdSk

February 13, 2017, 01:03 PM	#26
bfoosh006 Senior Member Join Date: February 17, 2009 Posts: 1,089	I suggest trying some 64gr Gold Dots. PSA routinely has them on sale for "Buy 10 , free shipping at $10.99 per box. And as for 55gr FMJ... for the most part they are ok... but there are more consistently expanding bullets out there... IE Fusion and GD. The 55gr FMJ is a "Yaw" dependent bullet.. which means it can perform differently depending on its impact angle ( Yaw ) This image shows what I mean... and the yaw angle cannot be controlled as it is just how the bullet travels. Looking at the image.... you can see a huge difference in the 55gr FMJ's behavior... sometimes it works great ( High Yaw ) sometimes it doesn't .. ( Low Yaw ) That is what I mean by "but there are more consistently expanding bullets out there... IE Fusion and GD." A Gold Dot / Fusion bullet will expand in a much more predictable way... since it is not a "Yaw" dependent bullet. Even the SMK 69gr and 77gr can be yaw dependent ( but to a lesser degree then the 55gr FMJ ) ... the Sierra TMK is designed to be an improvement on ballistic the performance of the SMK. IMHO, you would be served quite well with a 64gr GD for SD and your Coyotes ( as long as it fires accurately from your rifle. If your needed more penetration... stepping up to a 75gr GD will serve you well. FYI... Ballistic gel info ...( Look and click clear down at the bottom of the page under FBI Test Protocol. ) http://www.le.vistaoutdoor.com/ammun...C24448%2C24475 Any other questions or thoughts... just ask. Last edited by bfoosh006; February 15, 2017 at 02:58 PM.

February 14, 2017, 01:07 PM	#29
Tallest Senior Member Join Date: January 23, 2016 Location: West of the Atlantic Posts: 418	Wow - more good stuff. Thanks, Folks! bamaranger- It's great country, you're right! And I just picked up some 55 grn stuff to try out yesterday, Thanks! bfoosh006 - really interesting, and enlightening! Thank you! __________________ Matthew "All men are ignorant. The topics of our ignorance may vary, but the nature of the world is that no man may know everything." ~ R Jordan

February 13, 2017, 05:04 PM	#27
ejb69 Member Join Date: January 3, 2013 Posts: 49	Check your local hunting regs before using FMJ bullets for hunting.

February 13, 2017, 09:50 PM	#28
Panfisher Senior Member Join Date: July 30, 2010 Location: Missouri Posts: 1,337	I do have separate ammo for deer hunting, otherwise my AR eats a steady diet of 55 gn HP of various manufacture depending on what is on sale, all reloads.

February 15, 2017, 03:00 PM	#30
bfoosh006 Senior Member Join Date: February 17, 2009 Posts: 1,089	On a side note.... the "Newly" issued M855A1 is no where near as yaw dependent. IMHO, it is a very good replacement for the M855 and M193. https://www.youtube.com/watch?v=9_epymWduYs Verse Level III AR500... https://www.youtube.com/watch?v=e0gxeSpjdSk