4166

[Topshelfbv]

Anyone using 4166 for 243? Thoughts

 

[Seabeeken]

I use it in several but not 243. My 284 loves it with Hammers

 

[sierracharlie338]

It has worked great for me in 308 as well. Wouldn't hesitate to use it as a varget replacement.

 

[GRG]

I've used it in 243AI with a Sporter barrel as shown. Also used it in 22-250 but it's a 16twist barrel and I have other loads I like better. I've kind of been short on 243 bullets so really just been playing with what I have had sitting and some times extinct bullets.

It and 4451 seem to really handle temp changes well with no noticeable pressure issues.

 

[Dosh]

4166 is a bit faster than Varget but it was ok in grandson's.223. 4451 is quite accurate in a friend's .243 with bullets in the 90's, same burn rate as H4350. Twist rate is a factor there. All the IMR Enduron powders are temp insensitive.

 

[CoachChris]

It has worked great for me in 308 as well. Wouldn't hesitate to use it as a varget replacement.

Same here
I'm getting outstanding results with 4166 in my 308

 

[Justin Petrovich]

Anyone using 4166 for 243? Thoughts

I use 4166 in my 6gt with Hornady 108 eldm. 33.6gr puts me right at 2929fps under 1/2" group at 100 yards. Try the hodgdon reloading site, they had 13 load combinations using 4166 in a .243 winchester. https://www.hodgdonreloading.com/reloading-data-center?rdc=true&type=54

 

[308win]

I'm running 4166 with a 87gr VMAX out of a 16.5in barrel (1/10 twist). 3130fps
Not any pressure signs, but pretty warm load. Only getting 5 loads out of Federal brass, that doesn't really mean anything. Primer pockets get loose.

That's my pickup gun, so far been very effective on pigs from 150yrds to 400. I know most people frown on using a bullet like that on larger game, but not a pig has moved (except the 400yrd), all DRT.

 

[Topshelfbv]

Well just ordered 4lbs of 4166. Going to try it in my 6.5-284 and sons 243. The 6.5 shoots Berger 130vld and my son shoots 95berger vld