Palmer

What I find fascinating about double rifles is that each
seems to have its own personality and temprement."

You can say that again - tenfold !!!

When I get a new double, after getting it checked out by the gunsmith
I do the usual standard reloads and head off down the range. In the majority
of cases all well and good, guns shoot OK and I go on from here.

However some of my doubles are (or were) tempremental / sensitive and it took a couple
of tries to find the right load / formula etc ... you know what I mean.

I am NOT one who does unlimited experimentation once I have a gun shooting, however
from memory it was partly by accident / partly by trial that I found that the seating depth
affected the accuracy of certain doubles - I think the intial one was a 450/400.

"Are they all female?"

I called all mine "old girls" so I would tend to agree with you.
On the basis of temperment - definately !!!

One thing I have found is that the larger the calibre the easier they are to get to shoot.
500 Nitro's being the easiest - only had to reload for one 600 Nitro and that was a breeze.

Any comments from your experiences ?

Hope this helps.

500 Nitro