WWII Memorabilia

How can I tell if my Lee-Enfield is a .303 or .308?

On the tag it says 2a#1 mkIII and it also says .308. But the people at the gun shop I got it from aren't the brightest so I want to make sure before I try to fire it.

The Ishapore 2A1 rifles were manufactured to fire 7.62x51mm NATO ammunition.
They do not use the .303 British cartridge and were never meant to.
http://en.wikipedia.org/wiki/Ishapore_2A1_rifle

There are some concerns about military vs. civilian ammunition and whether or not it's safe to fire .308 Winchester ammunition in the Ishapore 2A1 rifle. Here are links with more details...
http://www.303british.com/id36
htmlhttp://home.comcast.net/~ehorton/The%20Truth%20About%20308%20Win%20and%20762%20NATO.pdf

Sealed Box Of 10 Lee Enfield Sling Brackets $19.99 (1 Bid) Time Remaining: 2h 1m

Lee Enfield Brass butt plate for No4 mk1 No4 mk2 No1 mk3 rifles $48.93 (1 Bid) Time Remaining: 2h 44m

Lee Enfield No4 Mk1 Rear Swivel Assembly Early Style $14.95 (2 Bids) Time Remaining: 3h 25m

Lee Enfield No1 Mk3 Inner Barrel Band $4.95 Time Remaining: 3h 29m

Lee Enfield No4 Mk1 Safety Assembly Complete Longbranch $24.95 (1 Bid) Time Remaining: 3h 33m

LEE ENFIELD NO1 MK III PART COCKING PIECE SET SCREW $3.99 Time Remaining: 3h 55m Buy It Now for only: $3.99

Lee Enfield P 1907 bayonet scabbard BSA refurbished Irish Guards $22.00 (1 Bid) Time Remaining: 3h 56m

Vintage Lee Enfield 303 Caliber Bandolers and Stripper Clips Well Marked $40.00 Time Remaining: 3h 56m

Lee Enfield No1 Mk111 Outer Lower Band $5.99 Time Remaining: 4h 14m

Lee Enfield No4 Mk1 Upper Band By Savage $11.27 (2 Bids) Time Remaining: 4h 32m

Old WW2 Lee Enfield Brass Gun Oiler Oil Can Vg $6.90 (6 Bids) Time Remaining: 12h 37m

Australian Central Angular Revolving Sling Swivel for Lee Enfield LE Rifles $24.63 (1 Bid) Time Remaining: 12h 56m

WWII SAVAGE BRITISH LEE ENFIELD NO4 SPIKE BAYONET SCABBARD $10.45 (2 Bids) Time Remaining: 17h 30m

British Short Magazine Lee Enfield Rifles SMLE 1 Guide $19.95 Time Remaining: 17h 37m Buy It Now for only: $19.95

Lee Enfield P 1907 bayonet wood grips screws NEW $15.50 (2 Bids) Time Remaining: 17h 48m

ORIGINAL WW2 British Army Lee Enfield Rifle Sling $21.95 Time Remaining: 18h 15m Buy It Now for only: $24.25

LEE ENFIELD NO4 MK1 PART HANDGUARD RETAINING RING $15.99 Time Remaining: 22h 19m Buy It Now for only: $15.99

Canadian Long Branch Lee Enfield No 4 Cocking Piece $15.00 Time Remaining: 1d 23m

Eight Bottom Bayonet Scabbard Monuts For P07 Lee Enfield Bayonet $9.99 Time Remaining: 1d 2h 15m

Lee Enfield P 1907 bayonet scabbards X 2 $44.00 (2 Bids) Time Remaining: 1d 3h 55m

LEE ENFIELD NO1 MK 3 PART RELEASE LEVER $2.99 Time Remaining: 1d 4h 2m Buy It Now for only: $2.99

Vintage Lee Enfield MK1 No4 Spike Bayonet and Sheath WWII Era $24.99 Time Remaining: 1d 5h 1m

Pads 4 Lee Enfield British 303 No 4 Sniper Scope Mount $65.00 Time Remaining: 1d 19h 19m Buy It Now for only: $65.00

Lee Enfield No1 SMLE Windage Sight Leaf and Slide $48.20 (2 Bids) Time Remaining: 2d 55m

Lee Enfield Short 22 inch RF Mark I Sight Protector $24.00 Time Remaining: 2d 1h Buy It Now for only: $32.00

LEE ENFIELD NO1 MK III PART BUTTPLATE SCREWS 2 $4.99 Time Remaining: 2d 4h 43m

LEE ENFIELD NO1 MK III PART REAR NOSECAP SCREW $3.99 Time Remaining: 2d 4h 47m

LEE ENFIELD NO1 MKIII PART INNER BAND SCREW SPRING $5.99 Time Remaining: 2d 5h 14m

LEE ENFIELD NO1 MK3 PART TRIGGERGUARD 3RD VARIATION $12.99 Time Remaining: 2d 5h 18m

LEE ENFIELD NO1 MK III PART FORE END STUD SPRING $5.99 Time Remaining: 2d 5h 23m

LEE ENFIELD NO1 MK III PART BOLT RELEASE LEVER $4.99 Time Remaining: 2d 5h 24m

LEE ENFIELD NO1 MK III PART OUTER LOWER BAND $9.99 Time Remaining: 2d 5h 24m

LEE ENFIELD NO4 MK1 PART SLING SWIVEL SCREW $3.99 Time Remaining: 2d 5h 36m

LEE ENFIELD NO1 MK III PART FRONT TRIGGERGUARD SCREW $3.99 Time Remaining: 2d 5h 36m

LEE ENFIELD NO1 MK III PART FRONT SIGHT BASE $5.99 Time Remaining: 2d 5h 37m

LEE ENFIELD NO1 MKIII PART EJECTOR $3.99 Time Remaining: 2d 5h 43m

LEE ENFIELD NO1 MKIII PART EXTRACTOR $7.99 Time Remaining: 2d 5h 43m

LEE ENFIELD NO1 MK III PART MAIN SPRING $5.99 Time Remaining: 2d 5h 44m

Lee Enfield P 1907 bayonet Stud Spring NEW $10.00 Time Remaining: 2d 6h 23m Buy It Now for only: $14.00

Australian Lee Enfield Web Sling Unissued $24.64 Time Remaining: 2d 11h 47m Buy It Now for only: $24.64

Lee Enfield Battle Rifles Guns Carbine Model ID Dates $79.50 Time Remaining: 2d 13h 8m Buy It Now for only: $79.50

Lee Enfield SMLE No1 MKIII Locking Bolt Unissued $9.95 Time Remaining: 2d 17h 44m Buy It Now for only: $9.95

Lee Enfield SMLE No1 MKIII Nosecap Nut Unissued $4.95 Time Remaining: 2d 17h 44m Buy It Now for only: $4.95

Lee Enfield No4 Rifle Sight Blades Set of 8 $26.00 (1 Bid) Time Remaining: 2d 22h 1m

Lee Enfield No4 Rearsight Mk4 BSA with fittings $24.00 Time Remaining: 3d 16m Buy It Now for only: $38.00

Lee Enfield P 1907 bayonet scabbard EB 2 refurbished $22.00 Time Remaining: 3d 38m

Lee Enfield P 1907 bayonet scabbard BSA refurbished $22.00 Time Remaining: 3d 3h 35m

WWII British Brass Oiler for the SMLE Lee Enfield Rifle Dated 1942 Reproduction $12.99 Time Remaining: 3d 4h 26m Buy It Now for only: $12.99

Lee Enfield No4 MKI Extractor Unissued $8.95 Time Remaining: 3d 4h 35m Buy It Now for only: $8.95

LEE ENFIELD NO1 MK III PART RELEASE LEVER PIN $4.99 Time Remaining: 3d 6h 48m Buy It Now for only: $4.99

Lee Enfield P 1907 bayonet scabbard EFD refurbished $22.00 Time Remaining: 3d 18h

Lee Enfield No4 Mk1 Savage Front Sight blade Base $9.99 (1 Bid) Time Remaining: 3d 19h 5m

Lee Enfield No4 Mk1 Sear Sear Spring Made By Savage $7.99 Time Remaining: 3d 19h 18m

Lee Enfield WW2 Oiler MkV Canadian $9.99 Time Remaining: 3d 20h 53m Buy It Now for only: $16.00

Lee Enfield MkV Plastic Oilers 5 $8.00 Time Remaining: 3d 21h 4m Buy It Now for only: $10.00

Lee Enfield No4 Band Upper Hinged Trials Type $36.00 Time Remaining: 3d 23h 49m Buy It Now for only: $50.00

Lee Enfield No4 Cleaning Kit $14.00 Time Remaining: 4d 1h 7m Buy It Now for only: $18.00

Lee Enfield No4 MkI Bolthead Release Parts Kit $14.00 (1 Bid) Time Remaining: 4d 1h 29m

LEE ENFIELD NO1 MK III PART BACK SIGHT $21.99 Time Remaining: 4d 3h 20m Buy It Now for only: $21.99

LEE ENFIELD NO1 MK III PART BUTTSTOCK $19.99 Time Remaining: 4d 3h 20m Buy It Now for only: $19.99

Lee Enfield P 1907 bayonet scabbard RE refurbished $22.00 Time Remaining: 4d 3h 35m

LEE ENFIELD NO1 MKIII PART TRIGGERGUARD2ND VARIATION $14.99 Time Remaining: 4d 5h 51m Buy It Now for only: $14.99

Lee Enfield No4 Mk1 Safety Spring $4.99 Time Remaining: 4d 6h 29m Buy It Now for only: $4.99

BRITISH No 5 WSC Mk1 Jungle Carbine Bayonet RARE ORIGINAL EXC Cond Lee Enfield $195.17 Time Remaining: 4d 13h 51m Buy It Now for only: $349.92

Australian Lee Enfield Oiler Lithgow Star D Marked $19.70 Time Remaining: 4d 14h 33m Buy It Now for only: $21.69

LEE ENFIELD NO1 MK 3 PART BACKSIGHT SPRING $5.99 Time Remaining: 4d 19h 14m Buy It Now for only: $5.99

LEE ENFIELD NO1 MK 3 PART BACKSIGHT SPRING $5.99 Time Remaining: 4d 19h 15m Buy It Now for only: $5.99

Lee Enfield P 1907 bayonet scabbards X 2 Early Late $42.00 Time Remaining: 4d 19h 52m

LEE ENFIELD NO4 MK1 PART RELEASE LEVER $3.99 Time Remaining: 4d 20h 14m Buy It Now for only: $3.99

Lee Enfield spike bayonet with scabbard for No4 rifles Manufactured by PSK $19.57 Time Remaining: 4d 21h 51m Buy It Now for only: $24.47

Lee Enfield spike bayonet with scabbard for No4 Rifles Mfr by Singer $19.57 Time Remaining: 4d 21h 56m Buy It Now for only: $24.47

Lee Enfield No4 No5 Spring Set $20.00 Time Remaining: 4d 22h 18m Buy It Now for only: $26.00

Lee Enfield chargers stripper clips and WWII bandolier $15.99 Time Remaining: 5d 4h 36m

WW2 4 MK3 LEE ENFIELD VINTAGE 303 RIFLE SPIKE BAYONET $15.00 Time Remaining: 5d 5h 32m

Lee Enfield SMLE Rifle Stock Set $37.00 (6 Bids) Time Remaining: 5d 6h 51m

British Lee Enfield Sling Brass Oiler and Canvas Carry Case $59.99 Time Remaining: 5d 7h 36m Buy It Now for only: $59.99

British Lee Enfield Spike Bayonet Frog $14.99 Time Remaining: 5d 7h 36m Buy It Now for only: $14.99

British Lee Enfield Canvas Rifle Case $32.99 Time Remaining: 5d 7h 36m Buy It Now for only: $32.99

WW2 Dated British Lee Enfield Buttstock Oiler $16.99 Time Remaining: 5d 7h 36m Buy It Now for only: $16.99

WWII BRITISH LEE ENFIELD NO4 SPIKE BAYONET SCABBARD $9.95 (1 Bid) Time Remaining: 5d 18h 57m

Lee Enfield No4 Target Sight Screws Parker Hale 5C $28.00 Time Remaining: 6d 39m Buy It Now for only: $34.00

Lee Enfield No1 Mk3 Buttstock $29.95 Time Remaining: 6d 3h 44m

WW2 OR POST WAR LEE ENFIELD PULL THROUGH STEEL END 303 BRITISH CANADIAN $3.87 Time Remaining: 6d 4h 52m

Lee Enfield No4 Sight Blades Set of 9 Solid Base $28.00 Time Remaining: 6d 9h 43m Buy It Now for only: $36.00

LEE ENFIELD NO1 MK III PART BACKSIGHT PROTECTOR $12.99 Time Remaining: 7d 1h 14m Buy It Now for only: $12.99

Lee Enfield Buttplate Trap Door Pin Unissued $2.95 Time Remaining: 7d 6h 25m Buy It Now for only: $2.95

Lee Enfield No4 MK1 Plunger Unissued $7.50 Time Remaining: 7d 6h 25m Buy It Now for only: $7.50

Lee Enfield No4 MK2 Safety Bolt Unissued $9.95 Time Remaining: 7d 6h 25m Buy It Now for only: $9.95