VIHTAVUORI N555 OPTIONS

I will drop again a couple of grains and do the job up and see what happens .I have and use alot of the 2400.Acquired two of the aged Enfields No 1 MKIII's and want to consider it in them also,have not loaded for them nonetheless but beeing a rifle bored out to 410ga it would be which i could bump them up a tiny bit far more,an ordinary 410 shotshe