204Ruger

I have played with the 45gr Hornady SP bullet in my 204Ruger T/C Encore MGM 24" 1-11 twist barrel, with H4895 shoot well. But yesterday I got a surprise, I shoot it at 100yrds shooting about right 1/2'high, but at 135yrds it was shooting 2" high. Against my 39SBK with H4895, 0 at a 100, 1/4 to 1/2 low at 135yrds. FPS I had it on both but can't find it right now.

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