Purchased a new 10/22 Lite and not all magazines would drop free. What I found was the mag well in the stock was not as wide at the front as it was at the back. What I did was remove the stock and use some 100 grit sandpaper on a thin flat stick to slowly working both sides to open up mag well until all magazines would passed freely. Reassembled and tested. All magazines now drop free, even my BX-25. This worked for me maybe could work for others.