Here are some possible substitutes based on model burn rates ranked by relative burn rate. Not to say they will work perfect in your rifle, and
you have to do safe load development starting low and working up cautiously, or using a model to formulate a safe program at safe pressures.
For Varget
Varget Highest in the .61 range
N140
IMR4320
IMR4451
Win 748 Lowest in the .56 Range
All of these are just a little slower than Varget.
============================
For H1000
RL25 fastest at .38's
N560
H1000 --at .36's
Ramshot Magnum
RL26
Acc Magpro Slowest at .33's
H1000 is in the middle of all of these.
=======================================
For Retumbo
Ramshot Magnum fastest at .34's
RL26
Retumbo at .33's
IMR 8133 slowest at around .3
Retumbo is in the middle more or less of these.
Hope this is helpful in this time of shortage trying to find other powders that will work in your rifle.
Enjoy load development. Necessity is the mother of invention......
you have to do safe load development starting low and working up cautiously, or using a model to formulate a safe program at safe pressures.
For Varget
Varget Highest in the .61 range
N140
IMR4320
IMR4451
Win 748 Lowest in the .56 Range
All of these are just a little slower than Varget.
============================
For H1000
RL25 fastest at .38's
N560
H1000 --at .36's
Ramshot Magnum
RL26
Acc Magpro Slowest at .33's
H1000 is in the middle of all of these.
=======================================
For Retumbo
Ramshot Magnum fastest at .34's
RL26
Retumbo at .33's
IMR 8133 slowest at around .3
Retumbo is in the middle more or less of these.
Hope this is helpful in this time of shortage trying to find other powders that will work in your rifle.
Enjoy load development. Necessity is the mother of invention......
