Wolfsburg1
New member
I am trying to come up with a good load for my Rem 700 SPS in 243. I switched out the SPS stock for a free floated and bedded maple custom.
Last week the following load shot to 1/2" at 100:
-Norma Brass FL sized
-39.5 and 40.0 grains of IMR-4350
-CCI-BR2 primers
-Honardy 100 grain interlock
-2.272 inches measured to ogive
Today I went to range to fine tune with 39.5, 39.8, 40.0 and 40.3 grains and my groups blew up to between 1.25 and 3.0 inches.
The only difference was that I neck sized rather than FL sized.
Has anyone else seen worse accuracy when neck sizing vs FL sizing? I fully expected the same or better accuracy with neck sizing.
Last week the following load shot to 1/2" at 100:
-Norma Brass FL sized
-39.5 and 40.0 grains of IMR-4350
-CCI-BR2 primers
-Honardy 100 grain interlock
-2.272 inches measured to ogive
Today I went to range to fine tune with 39.5, 39.8, 40.0 and 40.3 grains and my groups blew up to between 1.25 and 3.0 inches.
The only difference was that I neck sized rather than FL sized.
Has anyone else seen worse accuracy when neck sizing vs FL sizing? I fully expected the same or better accuracy with neck sizing.