.243WIN only groups with new Brass.
- Thread starter Breeny02
- Start date
Whilst I was sizing some brass this morning I had a thought about this
I generally don't work my loads up off of new brass but wait to build load off of fire formed brass.
New brass will just show me where my barrel seems to like a powder bullet combo, if at all.
Now I know where to start my serious load work.
I've seen neck tension on FF brass shrink groups on my wifes 260 from
low.4 to high.2's. Also in seating tests.
I generally don't work my loads up off of new brass but wait to build load off of fire formed brass.
New brass will just show me where my barrel seems to like a powder bullet combo, if at all.
Now I know where to start my serious load work.
I've seen neck tension on FF brass shrink groups on my wifes 260 from
low.4 to high.2's. Also in seating tests.
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