Axis uses short action bolt head. That way the firing pin works . Its the way they set it up to use existing parts to keep production cost down . They are ez to get on pacific tool and Gage . You will need an the extractor and ejector spring and detent also . These items are inexpensive . Not sure if they will come with the bolt head . I made my axis to 7 mm rem mag . They are a versatile platform . All Savages are push feed as far as I know .