IMR 4064 Substitute

[JustSomeGuy264]

Can't find 4064 around here but one LGS had 4166. Is that a safe substitute?

 

[Vern Humphrey]

What cartridge are you reloading?

Your best bet is to search for that cartridge and powder combination on the Internet.

 

[Ru4real]

If “substitute” means kind of close, but different, then yes.

IMR-4166 is a newer powder technology compared to IMR-4064, but they are different powders with different burn rates, so you must follow information for IMR-4166.

 

[JFrank]

Can't find 4064 around here but one LGS had 4166. Is that a safe substitute?

The burn rate is near identical
#100- IMR 4166
#101- IMR 4064

 

[JustSomeGuy264]

We'll be reloading for 6mm Remington. Very light bullets though, 85 grain i think. It was tough to even find a load for this gun with a bullet that light since the gun has a 1:10 twist.

I'm certainly open to any suggestions

 

[jmr40]

I've found it to be very similar to Varget and 4064 in my 308. Just confirm load data online, you can't use the same powder charges you were using with 4064. As always start low and work up.

Take Aim at Rifle Reloading Data | Hodgdon Reloading

Looks like they are showing a max load of 4166 over 3 gr over a max load of 4064 or Varget for about 140 fps more speed with 243/85 gr.

 

[JFrank]

 

[JFrank]

 

[JFrank]

^^^ here are a few that may help you decide (if you can find any at all)

 

[PWC]

Your best bet is to search for that cartridge and powder combination on the Internet.

Not just the internet, but the different powder and bullet mfgrs. There is a lot of questionable information on the net.

 

[Blue68f100]

It's not a substitute where you can just switch powder and load as it was the 4064, NO. You will need to work up a new load using this powder. I've tested it in my 6.5 CM and gave up ~100 fps vs my H4350. Both powders charges worked up for optimum accuracy. Forget what the burn charts show. It's only a reference and every chart you will look at will be different. Most will be within 5 of each other. But then you have to deal with lot variation.

New Powder = New Load.

 

[JustSomeGuy264]

I get that its jot identical to 4064 just wondering if I could expect similar results. The only load I had data for was with 4064 but with the above link I think I can find others

 

[Bfh_auto]

I get that its jot identical to 4064 just wondering if I could expect similar results. The only load I had data for was with 4064 but with the above link I think I can find others

Accurate, Alliant, IMR, Nosler, and Speer all have free online data.
It will give you an idea of what powders work well.

 

[noylj]

Look in published manuals or company web sites, not just the internet.
There is no substitute for 4064, but in terms of burn rate:
117. Varget (Hodgdon)
118. 5000 (Vectan)
119. AR2208 (ADI)
120. 4064 (IMR)
121. 4064 XMR (Accurate)
122. 2520 (Accurate)
123. 4320 (IMR)
124. N203 (Norma)

 

[Fine Figure of a Man]

I've found it to be very similar to Varget and 4064 in my 308.

So have I.

 

[sparkyv]

Besides 4064, I too found Varget to be a good powder as well as RL17.

We'll be reloading for 6mm Remington. Very light bullets though, 85 grain i think. It was tough to even find a load for this gun with a bullet that light since the gun has a 1:10 twist.

I'm certainly open to any suggestions

 

[JFrank]

We'll be reloading for 6mm Remington. Very light bullets though, 85 grain i think. It was tough to even find a load for this gun with a bullet that light since the gun has a 1:10 twist.

I'm certainly open to any suggestions

Both pages from the Nosler book I attached are testing light Bullets 85 ish with 1-10 twist barrels.

 

[JustSomeGuy264]

Both pages from the Nosler book I attached are testing light Bullets 85 ish with 1-10 twist barrels.

Yeah sorry my dad just recently picked up some 85 gr Sierras, but the bullet I had trouble finding a load for was Hornaday 65 gr. V-max. That Hodgdon link had all kinds of alternatives.
Thanks a bunch guys.

 

[noylj]

You can use data from a heavier bullet for a light bullet.
You can call the powder companies and ask for load data that they have and haven't published (amazing how often they will help).