351 WINCHESTER
Member
I found some interesting information regarding the conversion of no4 mk1 rifles to 7.62. I saw a picture with the proof of 19 tons. The Brits. use the long ton of 2240 lbs. which = 42,560 lbs. All .303 rifles were profed to 18.5 tons which = 41,440 lbs.
I thought the 7.62x51 nominal pressure was 50,000 lbs. I have always read and been told that the lee enfields were not very strong actions. I know the Indian enfields used modern steel and improved heat treating to allow them to use the 7.62 nato round.
How come the Brits. and Canadians rebarrelled some of their no4 mk1 rifles to the 7.62 nato round. I would think that after some period of firing that things would start to "give" under the added pressure.
I thought the 7.62x51 nominal pressure was 50,000 lbs. I have always read and been told that the lee enfields were not very strong actions. I know the Indian enfields used modern steel and improved heat treating to allow them to use the 7.62 nato round.
How come the Brits. and Canadians rebarrelled some of their no4 mk1 rifles to the 7.62 nato round. I would think that after some period of firing that things would start to "give" under the added pressure.