Currently I have a GAP 7WSM with 28" barrel on a Rem700 short action. Shoots great and am thinking about doing another only on a custom action. Was wondering if there would be an advantage to going to a long action. Right now I'm shooting Berger 180 VLD'S at 2960fps with a COAL of 2.960. This is my limit with the AI mags I'm using. How much would I gain by using a long action if any? Not really interested in any other calibers as I already have brass, bullets, dies and reamer.