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Old 09-26-2021, 09:47 PM
Rogeronimo Rogeronimo is offline
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Quote:
Originally Posted by Nevada Ed View Post
I saw where it was used in the 5.56 with a 20" barrel and 1:8 twist.

AA2520 is a good medium powder and both loads had a OAL of 2.255".
Two berger target bullets were used.

55gr match
25.5 gr...... 2965 26.5 ........... 3130 group ave........ .74

77gr OTM
24 gr ........ 2280 25.0 ............ 2760 group ave...... .74


Faster powders for the 55gr are AA2230, H4895 and.....AR Comp.
AR Comp fills the case up very well and is great for the begining loader.

AR Comp 55gr full load at 25.1 at....... 3167 group at .20" 100 yds
AR Comp 77gr full load at 22.0c at ..... 2680 group at .35"

This data is just that....................
I do not have these powders, and can not vouch for them.
Please check you manuals , before using.
Thanks Ed.
I figured it's got to have a sweet spot somewhere. I'll find it if there is one!😀
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