Relaoding 5.7 with 55 or 62 grain .223

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Straight-G
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Relaoding 5.7 with 55 or 62 grain .223

Post by Straight-G » 07 Feb 2011, 13:57

Hi all,
I know this must have already been covered but I can't find it. I am looking for a tested recipe for re-loading 5.7 shells with 55 or 62 grain .223 projectiles (preferably 62 grain). I actually want to slow the velocity quite a bit because my range won’t let me shoot anything above 1350 FPS.
Thanks.

PainKillaX
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Re: Relaoding 5.7 with 55 or 62 grain .223

Post by PainKillaX » 07 Feb 2011, 14:22

From what I've read (despite never reloading myself) you don't want to go above 50 or 55 grains. Whether this is simply poor velocity or a stabilization issues, I don't know. Could even lead to too high of pressures. I'll let a seasoned reloader pop in, good luck.

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Rapier1772
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Re: Relaoding 5.7 with 55 or 62 grain .223

Post by Rapier1772 » 07 Feb 2011, 17:04

For low velocity rounds you can usually get away with a heavier bullet in the FsN. Normally, anything above 55gr has stability issues but some people have had success using heavier bullets with subsonic loads. I have tried heavier bullets on my attempts at subsonic rounds BUT I have not perfected any recipe & have had stability issues with all weights :(


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iFire
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Re: Relaoding 5.7 with 55 or 62 grain .223

Post by iFire » 11 Feb 2011, 12:54

Straight-G wrote:Hi all,
I know this must have already been covered but I can't find it. I am looking for a tested recipe for re-loading 5.7 shells with 55 or 62 grain .223 projectiles (preferably 62 grain). I actually want to slow the velocity quite a bit because my range won’t let me shoot anything above 1350 FPS.
Thanks.
If the max speed allowed at your range is 1350, then try 4.4grs of True Blue with a 55gr FMJ w/ a COL of 1.580 - should get you around 1325 fps from the FsN...

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