Bdeather I really think you should start you daughter out with the 620gr bullshops and about 110 gr. of loose powder ha ha. Or better yet we will have her shoot the 300 gr. xtp and then you can shoot the 620 Ill catch the rifle when it throws you on your butt I promise. Really though why not just order some 400gr. bullshops and load down the powder some. But u know alot more about MZ than I do.