I'm in the process of having one of my Sako rifles rebarreled in .260 Rem.

After reloading Lapua brass for my 6/284, I was really impressed with the Lapua over WW brass.

Unfortunately, Lapua doesn't produce 260 brass so I'd have to resize either .243 Win up or .308 Win down. Probably go with necking up the .243 brass. However, Norma does offer brass for the .260 Rem.

Any suggestions as to which would be the better choice, Lapua .243, Lapua .308 or Norma .260 Rem?

Bobby B.

I've used Lapua in 6.5 x 284 and 6.5 Grendel and Norma in 6 mm XC. I do believe the Lapua is slightly higher quality but, I use the Norma repeatedly and regularly at 1000 yds with excellent results. In your situation, I would buy the Norma before resizing and dealing with an incorrect caliber stamp.
Regards,

I have both Norma and Lapua for my 6.5x55 and like my Norma brass alot.

I use 308 and neck them down. That way you can turn the necks to your chamber specs. Necking up 243 works well but the necks don't last long. Necking down 308s end up a little short and 243s end up a little long and have to be trimmed.

I use the 243 brass necked up for my 260ai. I have no issues at all w/ neck splits. I can't seem to neck down the 308 brass successfuly in one pass & they do have to be turned. The 243 is just easier for me & accuracy/longevity seem unaffected. To be honest, the RP brass is fine, just sort & prep. Also the Nolser brass is pretty good too.