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Legacy Member
68 Gram
Can you shoot a 68 Gram bullet in a 1 in 7 barrel ??
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04-09-2019 08:34 PM
# ADS
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Legacy Member
You mean grains? 68 grams=1 049 grains
It depends on the calibre and what you want to achieve. What do you have in mind?
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Advisory Panel
You can shoot a 68gr bullet in a 1:7 .223.
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Advisory Panel
Yes, competition shooters use 68, 77 and 80 grain projectiles. There is also a military load with the 77 grain SMK which is as long as it gets for feeding from a magazine. The 80 grain SMK is for single loading in slow fire prone at 600 yards and is too long to feed from the magazine.
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Legacy Member
68 Grains
Thanks to everyone for your help.
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Advisory Panel
1:7 is a faster twist than needed for most any .224 bullets used in an AR. It was adopted in order to stabilize the very long tracer bullet.
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