DK,
Saw your post last night, but wanted to think about it a little bit before responding, and also needed some light for the pics you requested.
This is in response to your question only. I’m not an expert, and am not qualified to offer “how to” grip a handgun advice. This is the way I do it, and it works for me.


I took these pictures with the gun in my left hand (I’m right handed) because it was easier for me to work the camera with my right hand. I don’t shoot the .454 or .475 one handed, these are examples only. Normally, my left hand (offhand) will be wrapped around my shooting hand with my left index finger in front of the trigger guard and my middle finger snugged up against the bottom of the trigger guard with the other fingers in between the gun hand fingers.
The picture with the little finger under the bottom of the grip shows how my hand is somewhat stretched out, kind of unnaturally. BE VERY CAREFUL ABOUT USING THIS GRIP FROM A BENCH REST – IT CAN BE VERY PAINFUL – YOUR PINKIE CAN GET SMASHED!! It helps to keep the gun from slipping in your hand under recoil. On my 454, the flare at the bottom of the grips has been removed, and a colt type bevel added. This makes it much easier to get the “pinkie” grip. It also keeps the edges of the grip from gouging you pinkie finger under recoil. This grip is much more natural, and easier to attain with smaller grips – old model single six, new vaquero, colt saa/clones, and the FA97. It is not as comfortable or as natural with longer grips such as the FA83, Ruger Bisley, and FA97 (the 97 is a smaller/shorter grip so it is sort of “in between”) unless you have large hands, which I don’t.
No matter where I have my little finger, I try to get as high on the grip as I can without interfering with the hammer spur, or letting my thumb accidently impede hammer fall. With your hand this high, you have to be real careful when wearing gloves, because the hammer can hang up on the leather across the web of your hand
I also wear a light glove on my offhand, as I’ve found that the trigger guard will pinch the middle finger of the support hand under recoil.
I hold the gun with the same tension (firm, but not to the point of shaking) regardless of where I put my little finger.
If you look at the five shot group at the upper right corner of target pictured in a previous post, the upper left, and far right holes were shot “pinkie finger under”, the three in the center with all fingers snugged up against each other – i.e. no point of impact change.
I’m not sure how your 4 5/8” .475 will recoil. Recoil is a very individual thing, and different people have different reactions to recoil depending upon the platform (barrel length, single action, double action, single shot, porting, grips, etc., etc.).
Last night, I chronoed:
400gr Horn XTP Mag
New Starline Cases
22.0 gr VV N110
WLR
At 5 paces and 71 Deg F, Avg Vel was 1,201 fps with a ES of 51 fps.
I will stop here with VV N110 and this bullet.
FWIW, in my opinion, Mark Hargrove’s post above is worth rereading.
Paul