243 wssm for competition?

[Mram10]

Going through some ammo tonight and noticed some 243wssm rounds and wondered if anyone has used these successfully in competitions

 

[bbrawand]

Old and new

When 223 wssm came out i bought 2 boxes and pulled bullets chambered 6.5 1 14 twist 90 gr 4 tenths groups i just chambered 6.6 for 1000 yd 115 gr 1 9 twist will see bill b