I have an older Speer book from the days when they copper crusher tested loads. The load I am interested in is the 243winchester and 85gr BTSP with H4350. The old book has it as 46gr which is stiff compared to Hodgdon and others.

I would be grateful if someone could look at the latest Speer book and tell me the current load for this bullet and H4350 (and MV/barrel length)

From Speer #13< !--color-->

.243 Winchester
85 gr Spitz-BT (Speer number 1213)

H4350 46.0 gr at 3235 fps
H4350 42.0 gr at 2914 fps

C.O.L.: 2.625 inches

Test Firearm: Ruger M77 MkII
Barrel length: 22 inches
Case: W-W
Primer: CCI 200 (used with loads listed above)

Note from the .243 Winchester page in manual:
"These loads do not exceed the industry maximum pressure of 52,000 cup."

Speer manual #12< !--color--> shows the exact same data for this powder and bullet. I doubt if Speer retested the load for manual #13< !--color-->. My guess is that they just republished the manual #12< !--color--> data (for this particular powder and bullet).

I hope this is helpful....
-Bob F.

It ain't Speer, but:

H-4350 From 34.5 grains to 46.0 grains
Remington 9-1/2 Primer

Gents,

Many thanks. 46gr gives me 3,300fps from 22" and maybe the faintest hint of the start of a crater in cool temps. 45.5gr is 3,250fps, accurate and no pressure signs.