Gotcha, well if you ever test it out with the regular end cap late me know the difference.I haven't shot my Omega 300 DTM without the break cap but compared to my other suppressor I have, it does seem to reduce recoil a little more. The drawback is that it seems a little louder then my other suppressor. Just my opinion on what I have noticed in the past couple months shooting it. I have it on a 6.5 prc and my 7 year old daughter is able to shoot it.