Winchester x-150

Hey everyone...I haven't shot my x-150 lately but was going to take it out and shoot it this weekend...does anyone remember or know what the setting was on the rear sight were it has the adjust ment notches...i started out with heavy bullets a little bit over 300 grain bullets can't rememeber exactly but i was adjusting it to see what it would do...now i found a good load but the bullets are expensive and i don't want to shoot a bunch to resight it in and the factory sighting seemed pretty close with the first loads i had...just wanted to save me some time...but if anyone could tell me what the factory set adjustment on the rear sight was at what notch would be very appreciated!!! thank you for any help!