1st i have 2 rifles that i can do this with 1 is a .223 & the other is .22-250. i do not have the money to try to upgrade to a "better" caliber. so please just need some quick info and that is it. if i were to enter a competition which caliber would or is best suited for competition? i believe the 223 has a 9twist and the 22-250 has i think a 12. the heaviest bullets i have shot with both guns is 60grns. what distances would be best for these 2 calibers? i am in oklahoma, how would i go about finding competitions near me? at what distances do these 2 calibers start showing their age. any thing else you folks can add would be great.