Sam...no, I have not tried 195`s in my AI. I have shot the 200 Part.with good results.
The 50grn 4064 load I shot today I got out of Ackleys Vol.I handbook. He suggesed max to be 52 grns with the 180 at about 2795. No info on the gun used to develope this load. Working up to Ackleys listing in my rifle showed presure with 180`s at 51 grns. My velocity here exceeded Ackleys max listing.
Today at the range, I shot Horn.150`s and the Rem 185`s at 300 yrds.Both print at same POI at 100yrds. I came up 4 min.and both printed the same POI at 300.
I`m still impressed with this old cartridge...tho in a modern firearm. It`s nice to know many? elk have fallen to it.