I'm shooting a 338 Lapua w/27.5" bbl,300 gr Smk's. Was using Retumbo for a while but couldn't find it anywhere so I'm trying the re33. Old load was 90gr retumbo @ 2730fps. Anybody have any info for the re33 loads in this setup? Have to keep the oal to 3.600 to run through the mag. Thank you in advance for any help/info on the matter!