A method may include: feeding a hollow-core preform into a draw furnace at a preform feed rate V.sub.p; heating the hollow-core preform comprising an outer tube having an inner radius/diameter r.sub.p/ID.sub.preform and an outer radius/diameter R.sub.p/OD.sub.preform; and drawing a hollow-core optical fiber from the hollow-core preform at a fiber draw rate V.sub.f and a draw tension , thereby elongating the outer tube of the hollow-core preform to an outer cladding of the hollow-core optical fiber having an inner radius/diameter r.sub.f/ID.sub.fiber and an outer radius/diameter R.sub.f/OD.sub.fiber; wherein: the interior cavity of the outer tube is under a differential core pressure P.sub.core, the differential core pressure P.sub.core, the inner and outer radii r.sub.p and R.sub.p of the outer tube are selected such that a tight control over target inner and outer radii r.sub.f and R.sub.f and a fiber dimension sensitivity ID.sub.fiber of the outer cladding can be achieved.