Varget is an excellent propellant, but a bit too slow burning for the Garand gas system. All of IMR4064, IMR4895 and H4895 generate the correct gas port pressure to cycle the action w/o risk of damage and, as a bonus, produce excellent accuracy.
Varget hit the market back around 1994 with lots of marketting hype as a "super powder". Many new "miracle propellants" have hit the shelves since then. One should not ignore the track record of the old IMR (Improved Military Rifle) powders, many of which date back to the 1930s, and have been doing the job quite nicely for the past 70-80 yrs. When Varget first came out I did a lot of comparative shooting with it using 168gr match bullets in a very accurate heavy barrel bolt .308 Win against a lot of the old stand-bys, incl IMR4064, IMR4895, IMR3031, H4895, W748 and BLC2. Quite honestly I didn't see much difference among them. The most accurate powder by a tad was WC755, a commercial grade ball powder. I still have a hoard of this for special occasions as it is also very accurate in a .308 Win sporter. I've often been tempted to try it in my 7.62mm Garands, but it is too slow burning for this application.
If a person shoots a variety of MILSURP ctgs and wants to rationalize their propellant selection, either IMR4064 or IMR4895 would be an excellent choice as a universal MILSURP propellant. Both do very well in a wide variety of ctgs incl the 6.5 Swede, 7x57, 7.62mm, .30-06, 7.62x54, .303 Brit, 8x57, or even the 5.56mm.