.243 Load Question

Dave R · 03-22-2008, 08:57 PM

PS - I have a reload question on the .243 that maybe you can answer.

My Savage Mod. 11 doesn't shoot H 414 that well. Using 100 gr Sierra Game Kings groups with this gun are about 50% better with IMR 4350 Vs H414. Naturally I'd like to use the IMR 4350 w/ 70 gr. bullets to if I I can tighten my groups which are about 1- to 1 1'5 Vs. half that w/ 4350. I realize that bullet weight, length etc can be a major factor but the 100 gr. loads are better with the IMR so maybe would the 70 gr. be too.

My Hodgon '07 manual doesn't even list the IMR 4350 power until it lists 85 gr. or heavier bullets. My older Speer No. 9 manual gives loads for a 75 gr. hollow pt. w/ IMR 4350 ranging from 43 to a max 47 gr. power charge. What do yo think would be a safe power charge range if I were to try the 4350 power w/ a 70 gr. Blitz King even though I can't find a published load for this power / bullet.?

I note that the mid-range power charges listed decreaseby about 0.5 gr. as bullet weight increases 5 grains. Therefore I'm thinking bout starting off w/ 45.5 gr. IMR 4350 and move up in 1/2 gr . increments to 47.5 gr.

Please advise.

Thanks

Sasha_from_RF · 03-23-2008, 12:35 AM

for 70 gr. SXSP Hornady (http://www.lapua.com/index.php?id=850)
N133 39.9 3334
N135 41.5 3409
N140 44.5 3505
N150 45.5 3492
N160 52.5 3563
N165 55.8 3246

70 GR. SPR HP
Hodgdon
H380
.243"
2.625"
42.0
3349
42,900 CUP
46.0
3567
48,900 CUP

70 GR. SPR HP
Hodgdon
Varget
.243"
2.625"
38.0
3433
45,500 CUP
40.5
3574
50,100 CUP

70 GR. SPR HP
IMR
IMR 4320
.243"
2.625"
38.5
3325
43,800 CUP
42.5
3541
50,300 CUP

70 GR. SPR HP
IMR
IMR 4064
.243"
2.625"
38.5
3316
43,700 CUP
42.5
3541
50,000 CUP

70 GR. SPR HP
IMR
IMR 4895
.243"
2.625"
38.5
3349
44,300 CUP
42.6
3558
50,000 CUP

70 GR. SPR HP
Hodgdon
H4895
.243"
2.625"
36.0
3286
42,700 CUP
39.5
3477
49,200 CUP

70 GR. SPR HP
IMR
IMR 3031
.243"
2.625"
35.5
3218
41,500 CUP
39.0
3485
51,100 CUP

70 GR. SPR HP
Hodgdon
Benchmark
.243"
2.625"
36.5
3128
45,100 CUP
39.3
3491
50,300 CUP

IMR 4350 and move up in 1/2 gr . increments to 49.5 gr.
but IMR 4320 better