What age to breed corriente heifers

[DCA farm]

Planning on buying some corriente heifers and plan on turning a corriente bull in on them if they are old enough to rope will they be old enough to run with the bull or will o need to keep the bull off them a little longer.

 

[Jeanne - Simme Valley]

Size/weight is more important than age. But, I can't advise because I am not familiar with them.

 

[southalberta]

Size/weight marginally important. Corriente sand longhorns it maturity

 

[southalberta]

Adding 2 pictures same heifer 60 days difference.
And she is actually ready to be bred now