Thanks to all for the kind words.
We don't have a lot of pigs up here and the firearm deer hunting nearest to me is limited to shotgun and handgun.
I found out that my 26" 12ga. Beretta Ultralight (1st. year) shoots certain sabot slugs 2 holes touching around 75 yards.
I call it my poor-man's Churchill XXV paradox and it's my main hunting weapon.
I also have somewhere around 200 rounds of skeet thru it and it's still quite tight.
Definitely a keeper.

30 miles west of here is great rifle deer territory.
We also have a lot of wild turkeys just west of here, in fact one occasionally wanders thru our back yard right here on the outskirts of town.
South of here is very good pheasant hunting.

Just found out the #3 Rizzini is FAIR.
Fabbrica Armi Isidoro Rizzini
https://www.shotgunlife.com/shotguns/gun...zzini-fair.html
http://www.fair.it/eng/storia.jsp

#4:
E. Rizzini was founded in 1974 by Emilio Rizzini, brother of Battista and Isadoro Rizzini.
Now absorbed into Fausti.
Emilio's son, Fabio, is married to Barbara Fausti.
https://www.shotgunworld.com/threads/there-are-four-different-rizzinis.69662/
has a lot more detail on the whole clan.
For instance the Guerini brothers are nephews of Battista Rizzini.
Gardone seems to be one big family!

Back onto my Rizzini BR550E:

As I said, it's regulated for the Hornady 265gr FTX LeveRevolution cartridge.
I am not a big fan of the FTX bullet in the 444 Marlin.
It's too long to crimp in the cannelure and still load into the side of a Marlin.
So they cut the brass shorter in what is already a slightly capacity challenged case (IMHO).
This begs the question of why would they salivate over a bullet because of it's superior BC and then load it in a cartridge that's 100 fps slower than their main 265 FP load (the Light-Mag and the SuperFormance rounds)?

However this turns out to be a boon in the case of regulating this rifle.
I can easily turn out a LeveRev clone using full length brass and the 265FP bullet going 2240 (46 gr. H4198) and it shoots perfectly.
The SuperFormance round is a powerhouse and drives the 265FP to 2340 fps.
One would be hard pressed to duplicate this round without going +P using available powders.
This gives me some velocity and barrel time overhead to regulate a slightly heavier bullet.
There's no way I could get a 280 to go over 2300 fps but 2240 is within reason.

The nearest range where I did all my 444 shooting closed before the pandemic so further development has been slow.
I did, however, find that the original Remington 240 gr. 444 ammo shoots well and chronographs around 2230.
My clone of that round using the Hornady 240 gr XTP (44.5 gr. IMR 4198) shoot just fine too.
This would be a good deer round for the little whitetails we have.

I do have some progress on regulating the Woodleigh 280 gr. 444 FNSP bullet, which is the sentimental choice for a double in 444, but have not finalized the load yet.
I have got it up to 2180 using RL-7 and feel the next 50 fps or so will be safe.
That and the 280 A-Frame would be my big game bullets if I ever needed such.

A couple of my initial targets when sighting in the Rizzini

I stupidly had a mercury recoil reducer installed for one of those and took it right back out.
It actually made the gun hop off my shoulder after each shot.
I don't have pictures of any of the later, better, groups using the right ammo.
40 yards is all I had at this range but the gun is supposedly regulated at 40 meters.
I've got to get to a better range.