seized rear brake drum

I was checking my brakes on my mk 2 The near side rear is really seized solid .
I have tried all the usual methods (slackening the brake adjuster, slackening the handbrake cables,
Tapping with a hammer around the rim . I am afraid to loosen the bleed nipple as it is well and truley rusted in ,and I dont want to snap it off.)
Please can anyone suguest a method of removal. I am at my wits end,

Try heating the drum with a blowlamp (or better still, two!), not all at once but working your way round it. The heat, and thermal expansion, may loosen its grip on the shoes. Alternative: brute force - get the drum to turn using a BIG breaker bar or by towing. In the last resort though, you may just have to cut the drum off.

Good luck!

Thanks, I have finally manage to free the drum ,but I cannot get the drum off.I have knocked it, banged it with a hammer ,begged it, pleaded with it. short of getting a hacksaw out ,I`m at a loss.

A large rubber mallet usually works, silly question are you turning the aduster wheels the right way on both??? you could undo the shaft nut and try pulling whole thing off, if I remember its a left hand thread on the nearside, if you don't check your shoes regularly they will wear the drum and leave a ridge and thats what stops the drum coming off, I always smoothed it off with a file - good luck.

Have you tried backing off the handbrake, better still, disconnect the linkage altogether.
And before reassembly, check the quadrant is not siezed.
By the sound of it, the Scamp has been stood a while and you might just find that the rear wheel cylinder will be siezed as well, which means it will need replacing.
A trick here is to completley remove the adjuster and clean the threads and before putting it back, slide a piece of 5/8 heater hose in the gap where the threads are exposed. Fill the hose with copper grease. This helps prevent siezure in the future. Also slide back the rubbers on the new cylinder and smear that with copper grease. This helps prevent siezure in the future.
Hope this helps.

Thanks everyone, weather permitting I`ll give it a try today