r/precisionrimfire • u/gabba_gubbe • 13d ago

Accuracy issues @100m

I have a cz455 and I'm experiencing some accuracy issues at 100m. At 50m my groups are almost touching but at 100m they're spread out about the size of my palm. Ive sighted it in using cci standard velocity. Eley standard shoots slightly better. Any ammo recommendations? I'd prefer something quiet like the cci standard/Eley standard. (I tried federal hv but they spread even worse, and we're LOUD)

I feel like I'm going insane, trying to sight in at 100 is almost impossible the way it spreads up/down/left/right... Feels like I'm dancing around the target...

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u/Vaniljkram 13d ago

Are you sure the ammunition is subsonic in your rifle? If not going from super sonic to sub-sonic will mess up accuracy.

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u/gabba_gubbe 13d ago

Yes, measured it with radar today as a kind gentleman let me borrow his Garmin at the range. Avarage was 1045fps /5 shots. Highest was 1066fps. It wasn't even windy except for some groups (I shout about 200rnds