Quickload for LT-32

[Joec7651]

How have you guys been doing? Haven't been on much. I was wondering if someone would be kind enough to run a Quickload calculation for LT-32 in a 22” barreled 45-70. 4198’s have been mythical lately and this sits smack dab between RL7 and IMR4198 on the burn chart. It’s a small extruded powder like the 4198’s and from what I’ve been able to gather it’s made at the IMR plant in Canada. I’m going to try it in a 45-70, well, because I want to see if it’s close to the 4198’s. I have plenty of both but am curious. Picked up a few lbs and I’m going to see how it behaves.

Marlin 1895 with 22” barrel
45-70, 300gr or 350gr Hornady interlock
Not looking for anything too crazy. I run both 4198’s at 2050 fps with the 300 grain bullets. Thanks in advance.

 

[JD338]

I can't say anything about LT32 but I can say that a 300 gr at 2050 fps is a powerhouse load.
Looking forward to hearing about your load development. I'm running H322 in my 1895G 45-70 at 2100 fps and sub MOA accuracy out to 250 yards.

JD338

 

[Joec7651]

It sure will knock deer flat. I shot a running doe at 5 yards and it literally stopped her in mid air. Lol
I’m 5 grains below Hodgdons lever starting load. Their 60 grain H4198 max load would be a beast. I can’t see how it wouldn’t be over pressure but they say it’s safe for the 1895. I tried their 55 grain starting load and even that load wasn’t fun to shoot.

I‘m hoping the LT-32 will do well. It’s the right burn rate to be a viable alternative to the RL7 to 4198 range. If not I’m sure it will be good for something.

 

[DrMike]

Unfortunately, LT-32 is not in my data set. My QL was secured in February of this year, so the propellant likely has not been tested and added at this point.

 

[flyingagg]

There is an Accurate LT-32 in GRT. If you can use that data I can copy it.

 

[michsteve]

Here is the Hodgdon LT-32 recipes for a modern type level action type rifle

Reloading Data Center – Hodgdon Reloading Data Center

hodgdonreloading.com

It doesn't want to transfer the specific load data but just pick rifle, scroll to 45/70 government lever actions, then choose powder and if you do not choose weight it will show all choices.

 

[Joec7651]

There is an Accurate LT-32 in GRT. If you can use that data I can copy it.

I forgot I had GRT on my laptop. It was dead on for my 450 Bushmaster. I’ll get my case volume and run those numbers. Thank you.

 

[Joec7651]

I’m going to just have to load it to see how it performs. This powder seems unique to me, to say the least. Maybe interesting is a better word.
The burn chart has it one below IMR4198. Load data has charge weights like H322 in 45-70. It’s a fine grain extruded powder made in the Canada IMR factory by General Dynamics and duplicates the old surplus T-32 bench rest powder according to Shooting Times. Finer than either 4198. In the 223 Rem their test loads were nearly duplicating current H4198 data, and did duplicate the older surplus T-32. Pretty accurately I might add.
I’ll do a ladder with chrono, but I suspect it behaves as a slower powder at lower pressure straight wall loadings. Regardless, I don’t foresee a problem getting my 2050-2100 fps 300 grain hunting loads with it in my 1895. It’s a got a 22” barrel and seems to shoot just about everything pretty well. Now that I said that it‘ll be like trying to get consistency with a slingshot. Lol.

https://www.shootingtimes.com/editorial/western-powder-accurate-lt-32-powder/473228#:~:text=Western%20eventually%20contracted%20with%20General,introduced%20as%20Accurate%20LT%2D32.