Ive had my 835 Tactical for 5 yrs. Ive shot everything from Win Supreme 3-1/2 to Nitro 4-5-7, 3-1/2. Ive only shot 2-1/2" to sight in a scope, but everything else has been the most powerful shells on the market. No problems. I have several people that own them also, including tbe 500 and none have had any problems.