Newton Bolt removal
Turn up the bolt handle and draw backwards on the bolt at the same time pressing back on the front trigger. The backwards pressure on the front trigger causes the forward portion of the sear to rise up and engage a detent finger on the lower side of the bolt stop, which is located under the rear receiver bridge. This prevents the bolt stop from rising and permits withdrawing the bolt completely from the rifle. This pressure must be applied before the bolt stop has entered into the notch of the lower side of the bolt, as the trigger has no power to draw the bolt stop down once it has risen, but merely holds it down if caught before it has risen at all.
I got this info from the NRA guide to Rifles and Shotguns, page 111. If you have access to this book, it gives complete disassembly instructions for this rifle.
