300 gr. CEB solids in .375 H&H

[375er]

Looking for what others have found for an accurate load with this bullet. Currently testing with IMR 4064. Open to opinions.

 

[Hunter-Habib]

Norma cases + Cutting Edge Bullets Safari Solids (300Gr) +IMR 4064 (70.1Gr) + Federal 215 Primer=

2535 FPS out of my Remington Model 700 Kevlar Stock Custom

 

[Mark A Ouellette]

Looking for what others have found for an accurate load with this bullet. Currently testing with IMR 4064. Open to opinions.

I prefer temperature stable H4895 when its available and H4350. Both render accurate loads in my .375 H&H rifles shooting 275 gr CEB Safari Raptors. While I have never loaded solids for my 375's, in .458 Win and Lott CEB Raptors and Solids shoot the same as long as I reduce the lighter Raptor loads by 1 grain of powder.

 

[375er]

Fine Sirs, thank you for the information. I have plenty of time to experiment but prefer to skip rabbit holes that others have already explored. Thank you both!!

 

[roklok]

I loaded the 300 Grain CEB Safari Solid with 71 grains of RL15 for 2530 FPS. A couple things I have found; First, these bullets don't develop as much pressure as most traditional construction bullets, so I had to use 3 grains more RL15 to get the same velocity as 68 grains with 300 grain A-Frame. Second, be sure to crimp between driving bands (most likely 1st and second). If you crimp in front of first driving band you will most likely suffer from recoil setback of bullet in magazine box. The neck tension is not enough to hold these bullets in place, as they only contact the case on the driving bands.

 

[Kevin375]

I had a good success with Vihtauori N150.

 

[375er]

I loaded the 300 Grain CEB Safari Solid with 71 grains of RL15 for 2530 FPS. A couple things I have found; First, these bullets don't develop as much pressure as most traditional construction bullets, so I had to use 3 grains more RL15 to get the same velocity as 68 grains with 300 grain A-Frame. Second, be sure to crimp between driving bands (most likely 1st and second). If you crimp in front of first driving band you will most likely suffer from recoil setback of bullet in magazine box. The neck tension is not enough to hold these bullets in place, as they only contact the case on the driving bands.

I just ordered some 275 grain Raptors to go along with the solids. Lots of testing to do. Oh darn! Likely going to try for a hippo so need to be carrying the hammer of Thor.

 

[RLL]

Looking for what others have found for an accurate load with this bullet. Currently testing with IMR 4064. Open to opinions.

Ive used Varget, reloader 15 and reloader 15.5, in similar weight charges with similar ballistic results.

 

[50Gunner]

New old stock WW brass
RL-17
FED-215
Firm pinch in groove with Lee Factory Crimp die

If you want or ever need 2700 fps you can get it safely with RL-17 under the 300gr BBW #13 solids, I use them in my pre-64 Model 70 375 H&H.

Start at 74 grains and work up with a chrono until you and your rifle are happy, I left a handful of those loads with PH, they used them for culling all animals great and small in the off season, he told me a couple years later ""that load simply knocks the F--- outta stuff,"" they had no recovered solids when I asked, plenty good enough for me, their 375 H&H is a big CZ American Safari rifle.

 

[LHPF565]

Norma cases + Cutting Edge Bullets Safari Solids (300Gr) +IMR 4064 (70.1Gr) + Federal 215 Primer=

2535 FPS out of my Remington Model 700 Kevlar Stock Custom

using H4350, 74g seated to 3.368 using comparator base to ogive vel 2451fps SD of 7, CCI 250 primers, Hornady cases

 

[Kudu 52]

I just ordered some 275 grain Raptors to go along with the solids. Lots of testing to do. Oh darn! Likely going to try for a hippo so need to be carrying the hammer of Thor.

I used barnes tsx 300 grain on hippo last year one shot double lung on dry land

 

[TOBY458]

I used the 300gr CEB solid on a tuskless elephant in 2023. Side brain shot at an angle. The bullet came out her neck on the opposite side. Can’t recall the powder and charge I was using, but my velocity was 2550 fps. I simply matched my velocity with my Barnes TSX loads and my POI was nearly identical between the two bullets.

 

[Kudu 52]

I used the 300gr CEB solid on a tuskless elephant in 2023. Side brain shot at an angle. The bullet came out her neck on the opposite side. Can’t recall the powder and charge I was using, but my velocity was 2550 fps. I simply matched my velocity with my Barnes TSX loads and my POI was nearly identical between the two bullets.

I'm going to use c e b safari solids in my 458 win mag for tuskless next year.

 

[Luvthunt]

H4350 and IMR 4064 gets it done for me

 

[Green Chile]

I prefer temperature stable H4895 when its available and H4350. Both render accurate loads in my .375 H&H rifles shooting 275 gr CEB Safari Raptors. While I have never loaded solids for my 375's, in .458 Win and Lott CEB Raptors and Solids shoot the same as long as I reduce the lighter Raptor loads by 1 grain of powder.

I also use H4895 or H4350 with all of my 375 H&H loads. You can also ask CEB for load data.

 

[Javaman]

According to @brucemoulds on here:

h4350 is probably the optimum powder for 300 gn bullets in the 375.
the reason is that the slowest burning powder that will give the velocity also has the least pressure.
so you get best velocities at lower pressure, AND h4350 is fairly temp stable.
this powder burning rate has a tipping point with 270 gn bullets in 375, working well with them, but lighter than that a faster powder is preferable.
in the old days, the next slowest powders were re15, varget, and 4064.
these are ideal for 235 gn bullets in 375, but too fast for 250, 260, and definitely 270 gn bullets.
now there are powders in between that will suit 237 to 260 gns.
yes re 15, varget, etc, will give the speed, but at what pressure compared to slower powders?
bruce.

Considering the above, I run H4350 in mt 375 H&H (and 375 Ruger) and find the best load for me using CEB’s load data, available from them. Since we have different guns, my exact load data is immaterial to you - you need to work up your own load using your gun with H4350, your choice of primer and the CEB bullets.

 

[Kudu 52]

I also use H4895 or H4350 with all of my 375 H&H loads. You can also ask CEB for load data.

That's what I use h4350 in my 375

 

[Kudu 52]

I also use H4895 or H4350 with all of my 375 H&H loads. You can also ask CEB for load data.

That's the powder I use h4350

 

[Kudu 52]

H4350 and IMR 4064 gets it done for me

I use h4350

 

[Luvthunt]

Have some loaded with H4895 but yet to try.