Anyone Using These Powders for 5.7x28 with 55gr bullets? H335/NO5/1680/IMR4198

moreland281 · October 22, 2007, 05:21 PM

Hello
I"m still new to reloading (been reloading 223, 9mm, & 40sw)
I just received my dies for my 5.7x28

Here is my problem.

I'm wanting to use the same bullets in my 223 as my 5.7x28.
I like the 55gr load in my 223 so I wanted to use it in my 5.7x28 (as plinking ammo)

I am ordering some other grain bullets to use as hunting/percision with my 5.7 but only 50 at a time of them (I don't do it that often 50 will be a years worth of hunting ammo for me)

I have the following powders available
H335
#5
1680
IMR4198

I have noticed some of these used on the 5.7 but not with 55gr bullets.

I use CCI #400 primers.

If anyone can give me a good starting load to use with any/all these powders I would be very greatful. I have no idea what to start with on this load. (haven't found that much data on the 5.7 around)

I know AA has data listed for #5 but not for that grain bullet..

Thanks again

John

Trapper L · October 22, 2007, 08:26 PM

I think you'll find the 55 gr bullets to heavy for that round. They probably won't stabilize at the twist/velocity that is produced. H335 is totally out of the question and I wouldn't even attempt AA5. Loading densities/pressure in this case will go critical quick. A fast powder like AA5 will only make it worse and dangerous. 4198 is also too slow and that leaves the AA1680. You could start low with it and give it a try but if it were me, I'd contact the folks at Western/Accurate powders and see if they have some ideas for you. Give them a call: (406) 234-0422. I believe that they will tell you the 55s won't work and AA1680 is too slow. But if you would, I would like to know what their comments are.

Smiter_Co · January 24, 2008, 11:35 AM

I'm looking for reloading data of any kind and not having much luck finding it.

lslubecki · January 25, 2008, 08:09 AM

Go here. http://www.fivesevenforum.com/ They have a reloading section with more variety than you will ever see anywhere. They are loading 55gr at 1600 fps. Awesome site if you own a FN5.7! Different powders and different grain bullets. They stress safety and all that have posted are done with crono readings and powder grains used. I cant say enough about this site and the info you will have access to. Some are a little gruff in their responce so read and do searches and grow a little thick skin and enjoy the site.

October 22, 2007, 05:21 PM	#1
moreland281 Junior Member Join Date: December 4, 2006 Posts: 13	Anyone Using These Powders for 5.7x28 with 55gr bullets? H335/NO5/1680/IMR4198 Hello I"m still new to reloading (been reloading 223, 9mm, & 40sw) I just received my dies for my 5.7x28 Here is my problem. I'm wanting to use the same bullets in my 223 as my 5.7x28. I like the 55gr load in my 223 so I wanted to use it in my 5.7x28 (as plinking ammo) I am ordering some other grain bullets to use as hunting/percision with my 5.7 but only 50 at a time of them (I don't do it that often 50 will be a years worth of hunting ammo for me) I have the following powders available H335 #5 1680 IMR4198 I have noticed some of these used on the 5.7 but not with 55gr bullets. I use CCI #400 primers. If anyone can give me a good starting load to use with any/all these powders I would be very greatful. I have no idea what to start with on this load. (haven't found that much data on the 5.7 around) I know AA has data listed for #5 but not for that grain bullet.. Thanks again John

October 22, 2007, 08:26 PM	#2
Trapper L Senior Member Join Date: November 20, 2006 Location: South Texas Posts: 804	I think you'll find the 55 gr bullets to heavy for that round. They probably won't stabilize at the twist/velocity that is produced. H335 is totally out of the question and I wouldn't even attempt AA5. Loading densities/pressure in this case will go critical quick. A fast powder like AA5 will only make it worse and dangerous. 4198 is also too slow and that leaves the AA1680. You could start low with it and give it a try but if it were me, I'd contact the folks at Western/Accurate powders and see if they have some ideas for you. Give them a call: (406) 234-0422. I believe that they will tell you the 55s won't work and AA1680 is too slow. But if you would, I would like to know what their comments are.

January 24, 2008, 11:35 AM	#3
Smiter_Co Junior Member Join Date: October 31, 2007 Posts: 7	I'm looking for reloading data of any kind and not having much luck finding it.

January 25, 2008, 08:09 AM	#4
lslubecki Junior Member Join Date: January 16, 2008 Location: Dayton OH Posts: 8	http://www.fivesevenforum.com/ Go here. http://www.fivesevenforum.com/ They have a reloading section with more variety than you will ever see anywhere. They are loading 55gr at 1600 fps. Awesome site if you own a FN5.7! Different powders and different grain bullets. They stress safety and all that have posted are done with crono readings and powder grains used. I cant say enough about this site and the info you will have access to. Some are a little gruff in their responce so read and do searches and grow a little thick skin and enjoy the site. __________________ Steve Someday someone may kill you with your own gun, but they should have to beat you to death with it because it is empty.