Superformance performance

[muleman]

Just got done shooting and I've found my antelope load! I was working with 150 and 165 gr. Accubonds in my 300WSM and trying Hogdon's Superformance. Most groups were 11/2" to 11/4" but I found three that broke MOA. The most promising is 150gr. AccuBond, 73gr of Super over a Fed 215M. A COL of 2.860 gave me a .75" group at 3270fps with STD of 9. At COL of 2.930(mag length) I got 1" groups at 3374fps and a STD of 12. My gun is a CZ model 3(Montana 1999 action) with a 24" barrel and totally stock except for the full action bedding I gave it(my first do it yourself job). The 165gr AccuBond flew well with 71gr of Super, Fed 215M primer loaded to a COL of 2.930 I got 1" groups going 3193fps, STD of 11. Now all I have to do is mount the new 4.5x14 leupy VX-3 with the varmint reticle and verify the stadia and I'm ready for Oct 18th.

Good Hunting,
Scott

 

[SJB358]

Wow, that Super seems to really make the 300WSM sing! I have to remember that for when I acquire one! Those are some great speeds with those bullets. Very deadly rounds there. Seems like that 165gr AB would work pretty slick on elk too. Scotty

 

[JD338]

muleman

That is some pretty impressive performance, way to go.

JD338

 

[DrMike]

Good for you. My first tests with SuperFormance were positive. I can't say that accuracy was better than with some of the older powders, but there was a marked increase in velocities. Your work verifies what I observed. Good luck on antelope.

 

[wildgene]

...so far, my very small experience w/ Suprformance has left me scratching my head, my .25 WSSM doesn't seem overly impressed w/ it. So far, RL-17 is working just as well w/ better velocities in both the .25 WSSM & .300 WSM...

...accuracy ES/SD has been very good in my .300WSM, velocities haven't been quite what I expected, mind you, these are some bullets stuffed into cases over some powder, shot thru a dead stock T3 in kinda a hurry so, take the results w/ a grain of healthy scepticism...

.300 WSM/ 165 Sierra BT/ 71.0@ 3077fps/ 70.5@ 3035fps/ 71.5gr@ 3114fps., bottom is 72gr.@ 3107??? Suprfrm

 

[DrMike]

Gene,

I've observed that phenomenon on multiple occasions. You've plateaued the velocity curve despite the pressure curve still rising. You're likely on the cusp of a pressure spike, assuming that data is reproducible. I generally drop back at that point, anticipating that I'm tickling the dragon's tail.

 

[C.Smith]

Gene,

I've observed that phenomenon on multiple occasions. You've plateaued the velocity curve despite the pressure curve still rising. You're likely on the cusp of a pressure spike, assuming that data is reproducible. I generally drop back at that point, anticipating that I'm tickling the dragon's tail.

I'm starting to wonder if this a Tikka T3 deal. Mine in 30-06 hit its plateaue well before two otehr 30-06 I've loaded for.

Corey

 

[efw]

Great sounding results.

My 257 AI is in the shop right now. When I get it back I'm pretty sure I'll have to dink around w/ this stuff to see how it does against the fantastic results I've gotten w/ IMR4350. The 257 AI has a bit more case capacity than the WSSM, but they're really close.

 

[FOTIS]

Yes sir we are very lucky to be living during these times. Components are so versatile and plentiful.

I was reading Roy Weatherby's bio the other day and he was referring to Remington Core locts as controlled expansion bullets!

 

[mcseal2]

Superformance performed as advertised in my 6mm Remington. I'm getting 70gr ballistic tips to run 3824fps. Coyotes hate the new load, sighted in for a 2.8" max rise over line of sight at 170yds I can hold dead on to 340 and on hair to 390. I like the new powder.

 

[scout1]

Where does the superformance fall in the burn rate/ what powder is comparable. I'm running the 208 A-max in my 300 WSM at 2950 fps with RL-17 and so far this combo is hard to beat. The only worry I have is the temperature stability as I developed this load in near 100 degree weather.

 

[wildgene]

Where does the superformance fall in the burn rate/ what powder is comparable. I'm running the 208 A-max in my 300 WSM at 2950 fps with RL-17 and so far this combo is hard to beat. The only worry I have is the temperature stability as I developed this load in near 100 degree weather.

...fastest to slowest, some common powders for reference...
112. IMR-4350
114. RL-17
119. RL-19
120. IMR-4831
124. H4831/H4831SC
125. SUPERFORMANCE
128. RL-22

...you'll probably lose some velocity, but RL-17 is supposed to be very temp stable...