RIR X barred female... use the best male you can beg borrow or steal... from a good egg laying strain.... a barred female from a breed that is a good egg laying strain and one that lays brown eggs.. you could even use a Cuckoo Marans to get darker eggs....
From this cross you only want the very very best MALE that is true to type on the RIR .. remember you only want the barred gene... not a Rhodebar that looks like the barried female breed....
With this male you breed him to the very very best female RIRs you can get.... and you keep the very best females as these will be Rhodebars... then you must use one of these F2 males and back cross them to a Rhodebar female... yelding you the most wanted male in the Rhodebar world... a true breeding one of a kind double barred Rhodebar male.... he is the money bird... as you can get all the females you want from him by breeding him to RIR females.... this is the small breeder in the back yard method...

but you will have your own strain.... this is the Punnett and Peace method....then you can go with the Hagedroon method that takes about 12 years...

just remember this is your strain... it's not like you are a huge huge farm that everybody in the world buys your breeds just because they are a big big farm so they know what you're doing.... i mean you're just some guy with a couple pens in the back yard and have no idea what you're doing... :O)) so no one will care about your strain....

but you... do your home work... know more about the breed you want and love then you should know.... more than anyone should know...

and cull... cull cull... somewhere some breeder once said something about the best breeding tool known to the breeder is the axe.... take no one persons word on anything... beleive what you see in your breeding... even if it's some highly rated all over the internet theoretical geneticist that can at leaast spell better than you

do all the research you can over over and over again...
and pray...
the male Hampbar in my avatar is the result of years... years... and over 72 culls.... and then when he is three years old and nine pounds of top dog number one alpha ROOSTER in the world... two dogs not worth his oil gland will destory the pen he is in while you are out of town... eat all the females in with him and but due to the sheer monster bad boy that he is they can't eat him... but leave him under a tree next door.. where you find him... and three hours later he dies... and if all this is what you are looking for... then go kick some arse... and breed your owe strain .....
Keith
SC
USA