Prodigy was my initial first choice until I discovered that aluminum wouldn't stand up to heavy duty cleaning.
If you want it to last forever, I would really suggest getting a can that is all stainless, all titanium, or a mix of the two and has takedown capability. I went with a Liberty suppressors KODIAK TL for my needs. Aluminum cans like the Prodigy can't survive "THE DIP" which is the easiest way to get lead desposits out of a can. Only Titanium and Stainless Steel can survive the dip.
So I would suggest you look at something like that.
The Liberty Kodiak and Kodiak TL meter really well on both a rifle and a pistol. That's what made my choice. Several cans are awesome on a pistol but suck on a rifle and vise versa. Example would be the SWR Spectre. Awesome on a pistol...not so much on a rifle.
The Kodiak is rated for full auto use with 22LR and 22 WMR. It's semi-auto rated for 5.7x28. Pretty sure Stu told me 22 Hornet was also fine.
http://www.libertycans.net/rimfire_portal.html
In a semi-related note, I've got an LRB M14SA that I absolutely LOVE! It's the pride of my battle rifle collection. You are going to absolutely love that M25. Gemtech stocks a front sight base that uses the castlenut which has 5/8"x24 threads on it which replaces that standard M14 front sight unit. I'm planning to get a Liberty Freedom 308 can (quietest 308 can Titsworth has tested under 2 lbs) for my Remington 5R and one of these adapters will allow me to use a standard threaded can on the M14. Pretty slick.
http://www.libertycans.net/freedom.html
-David
Edgewood, NM