I have a full 8 lb jug of the stuff, that I bought from GIBrass about 8 years ago. I've never burned a kernal of it yet, but I've read through every thread I can find, and read most of them a dozen times.
With that disclaimer out of the way, I can tell you the following.
Lot numbers:
post #5 in this thread, summarizes the info I've read about lot numbers.
https://castboolits.gunloads.com/sho...=1#post3581750
~~~~~~~~~~~~~~
“If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun.”
― The Dalai Lama, Seattle Times, May 2001
All, I've been using IMR 7383 for years, primarily in my .243Win. (now sold off) and .30-06 with jacketed bullets, with nary a problem. My unnumbered lot is ~the same burn rate as IMR 4831 and is much "fluffier" than IMR 4350. Lately, I've been using it with 160gr. cast bullets in my SKS with LR magnum primers and have been very happy with it with respect to accuracy and not tossing the ejected brass a country mile. If you already have a jug, use it, but start conservatively and chronograph your loads: It is a good propellant especially since it was once dirt cheap. Now? maybe not so much (because of its price).
The stuff I have has hollow sticks like SR4759 only much thinner.
The fear of the Lord is the beginning of knowledge: but fools despise wisdom and instruction.
Proverbs 1:7
I bought this powder 5 years ago , label say's 4831 less 15% , finally got around to using it.
Gun:
TC Encore pistol 25-06- 15" barrel -shooting Sierra 120g HPBT
IMR 7383- Winchester LR primers
37.0gr = 1895 fps- dirty
38.0gr = 1956 fps- dirty
39.0gr = 2115 fps- a few unburned flakes
40.0gr = 2237 fps - nice and clean barrel.
Sean
Last edited by 475/480; 02-07-2023 at 09:09 AM.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |