What propellant in Swede Milsurp cartridges?

[roysclockgun]

I admit it, I am cheap. I pulled 40 fmj bullets from Swede 6.5x55mm milsurp cartridges, reduced the propellant load to 44gr. (roughly 3gr. reduction). I then seated 140gr. Remington Core-Lokt bullets, pulled out to where they will just fit into the mag, but no where near the lands in that generous military chamber. In the cut-down 20" barrel, this load is shooting inside 1" off the bench at 100 yards, when I do my part.
My question is; does anyone know what commercial propellant I can use to duplicate what I am doing with the Swede propellant.
Secondly; pet loads for this 20" barrel and 140gr. bullets? Pet loads for 120gr. bullets in a like rifle?
TIA
Steven A.

 

[FOTIS]

No idea about the propellant ..... probably Nobel or Norma either way non canister for sure, As for loads I always used imr 4350 or 4831

 

[Antelope_Sniper]

I have no idea what the powder is either.
I like the 140gr core-lokt bullets in my Sweed as well. I've had very good luck with H4831, Win Brass and WMRP.

 

[Ridge_Runner]

my understanding is re-22 is "the" powder for the swede with 140 gr bullets.
Do you have access to a chrony? if so load up the 140's with re22 ir one of the 4350's to the same MV and they should shoot close to the same or better due to the fact that the propellant isn't as temp sensative.
RR

 

[Ol` Joe]

I`ve burnt a lot of R22 in my Swedes, both commercialand mil-surp. It works very well with 120-140 gr bullets.
As for the powder in factory ammo, it`s anyones guess.

 

[bluedot]

It is my understanding that the most common propellant used in the mil surp swede ammo was a non canister version of RL 22.

With that said the most consistantly accurate powder in my 2 6.5x55's have been RL 22/Norma MRP and VV165.

The swede thrives on slowww powders!