I don't have the woodleighs yet but plan on ordering them today.Kynoch loads a 300 gr. , probably the same bullet but i cant find any info.I've been hand loading for over 30 yrs. and always back off a few grains when i change components,just to be on the safe side.I agree with you Daryl and thanks for the input.Ain't it fun to work with an old round like the 405!