The Firing Line Forums - View Single Post - Dupont 4895- IMR 4895 are the the same powder

T. O'Heir · October 27, 2009, 02:04 PM

Any Dupont powder is at least 35 + years old. However, like Sevens says, IMR was a Dupont brand name. They got out of the powder business in the late 60's/early 70's.
Their use of IMR(Improved Military Rifle) dates from the 1920's. Mind you, there was no other company using the number '4895' until Hodgdon came along. H4895 and IMR4895 are very close. Numbers 69 and 71, respectively, on Hodgdon's burn rate chart.

October 27, 2009, 02:04 PM	#5
T. O'Heir Senior Member Join Date: February 13, 2002 Location: Canada Posts: 12,453	Any Dupont powder is at least 35 + years old. However, like Sevens says, IMR was a Dupont brand name. They got out of the powder business in the late 60's/early 70's. Their use of IMR(Improved Military Rifle) dates from the 1920's. Mind you, there was no other company using the number '4895' until Hodgdon came along. H4895 and IMR4895 are very close. Numbers 69 and 71, respectively, on Hodgdon's burn rate chart.