No aspirin! That,s a inhibitor of platelet's aggregation! The risk of bleeding is very high! The shape is not a problem and if you are a small man you accept, imo, better the recoil of your rifle. I am a small one too ( 1,75m/71kg ) and use a lot of very big bore's for hunting. A lot of people have a problem with the big bore's on this NITRO EXPRESS forum! Big bore's started by the caliber .458 and nitro express is the symbol of big bore's! 416 Rigby versus 458 Lott is a interesting discussion! Use the biggest caliber's that you like to shot, and that you can shot accurate!