I've a box containing 48 rounds of 6.5x55 ammo, that were originally in a Norma box, but have military markings on the head-stamp.
They are loaded with an 80.1gr. RMJ round nosed bullet, with a quoted velocity of 2,975fps.

Seems to me, Sierra used to have an 85gr.Spitzer and an 87gr. HP, and Hornady an 87gr. but a Spire Point.
Speer's 100gr. HP was a huge HP hole. That one I drove at about 3,200fps from my 6.5 Mag and a gut shot would lift a 12 pound ground hog (Eastern Woodchuck) almost 8' in the air, spewing his innards in a large circle. Dead instantly, of course. Very effective.
The 85's did not shoot as well.
The old books, like Hodgdon's #21, dated 1970, lists 6.5 mm bullets starting at 77gr., then 87gr., 100gr., etc.
Lyman's #44 and #45 list 6.5x55 loads for 85gr., from an 18" Swedish Carbine of 18", and 7 1/2" twist at 3,225fps with H380, to 3,247fps using IMR powders. #44 was published in 1967 and was my first reloading book.
Hornady has a 95gr. Vmax. Per calibre, they usually work as well or better (faster expansion) than older HP's.
Even a M96 with 23.4" (model 38) should be able to get 3,150fps with the 95gr. or 100gr. 6.5's. I'd use ADI's 2208H(?) H4895 equiv.
There are no flies on the old Swede.