This help?
http://www.partsofsw.com/ionblas1.htm
Lee-Enfield No. 1 Mark 3 rifle
Barrel Length: 25.2″
Overall Length: 44″
or here's more detail (think i have the right page) from
http://www.rifleman.org.uk/The_Rifle_Sho...nfield.htm
Length of barrel 25 3/16 inches.
Calibre .303 inch.
Rifling Enfield
Grooves, number 5
depth at muzzle .0065 inch.
depth at breech, to within
14 inches of muzzle .005 inch.
Width of lands .0936 inch.
Twist of rifling, left-handed 1 turn in 10 ins.
Sighting system Adjustable barley
corn front sight, radial back sight.
Distance between barleycorn
and back sight, V 1 ft. 7 5/32 ins.
Length of rifle 3 ft. 8 9/16 ins.
Length of rifle with sword-bayonet 4 ft. 8 11/16 ins.
Length of sword-bayonet (over all) 1 ft. 4 7/8 ins.
Length of sword-bayonet blade 1 ft. 0 1/8 ins.
Weight of rifle, with magazine empty 8 lb. 21/2 oz.
Weight of sword-bayonet 1 lb. 01/2 oz.
Weight of sword-bayonet scabbard 0 lb. 41/2 oz.
Ammunition same as for M.L.E., M.L.M., M M., and M.E. arms.
The following components are special to this rifle—
Components
Barleycorn foresight— Guard, trigger
Normal Guard, hand, front
High Guard, hand, rear
Low Guard, hand, front cap
Barrel Guard, hand, rear sight
Block, band, foresight protector
Body Head, with catch, slide,
Bolt sight leaf (2)
Bolt head Key, block, band, foresight
Bolt head charger guide Leaf, sight, back
Butt plate Locking bolt
Band, outer Locking bolt stop pins (2)
Band, inner Locking bolt safety catch
Bed, sight, back Magazine case
Bolt, stock Nosecap
Clip, stop, magazine Nut, keeper, striker (with pin)
Cocking piece Nut, screw, back, nosecap
Cut-off t
Extractor t In rifles for naval service only.
Pin, axis, leaf, sight, back Screw, fine adjustment, sight
Pin, fixing, bed, sight, back leaf
Pin, fixing, block, band, Screw, keeper, slide, fine
foresight adjustment, leaf, sight, back
Pin, fixing, stud, head, catch, Screws, nosecap
slide, sight, back Back
Pin, joint, band, outer Front
Plate, dial, sight Screw, nut, keeper, striker
Platform, magazine Screw, spring, aperture sight
Rivets, handguard, rear, sight Screw, spring, sight, back
protector, side Screw, stop, charger guide
Rivets, handguard, cap and Sear
sight protector, top (3) Slide, sight, back
Spring, aperture sight Slide, fine adjustment, leaf,
Springs, catch, slide, sight, back
sight leaf (2) Striker
Spring, nut, keeper, striker Stem, swivel, butt
Spring, platform, magazine Stock, butt—
Spring, auxiliary, platform, Normal
magazine Long
Spring, screw, band, inner Short
Spring, sight, back Stock, fore-end
Strew, band, outer, and Stud, clip, stop, magazine
swivels, butt and piling Trigger
Screw, band inner Washer, spring, band, inner
Screw, guard, back Washer, pin, axis, sight, back
Screws, bed, sight, back— Washers, rivet, fore-end; cap,
Front spring, and sight protector,
Back handguard (7)
Screw, dial sight, fixing
The pattern 1903 sword-bayonet (LoC 11716, 11717), is used with this rifle.