X2 on superformance being erratic. When you get near pressure it can get squirrely and surprise you. Go up slowly when you think you're near pressure.
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Well I bit the bullet and ordered some hammers…help appreciated, don’t wanna waste them
- Thread starter Calvin45
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Calvin45
Well-Known Member
The guys at hodgdon and hornady even acknowledge this tacitly:
It has a narrow performance window but where it works IT REALLY WORKS
I will have a load for you shortly.
Hahah! Just realized how many of you youngsters will recognized this?
cabelasken
Well-Known Member
my sweet spot has been H4350 and a very slight crimp.
RL26 or H4350 for both bullets. They run at similar velocities in my 25sst. Both produce faster speeds slightly than h4831sc but it is still a good option.
From shooting both of these at as close to equal pressures with the best accuracy with h4350 I have determined the 90gr ah is the better bullet for my uses. Less drop and drift, short and close range even though they run 180fps slower than the 75s (3750fps vs 3930fps)
I tried crimping and not crimping, In bolt rifles I don't do it unless it really tightens up a load or it's a heavy recoiling DG rifle. But it never hurts to try both and go off the results.
They are both great bullets and I always like shooting several to see what the rifle likes. I've compared the 75HH,90AH, and 92HH with h4831sc, rl26, and h4350. All have shot well below half moa. IMO from zero to 800 yards it hard to beat the 90AH at 257WBY speeds.
And if you want some entertainment shoot some 67gr sledge hammers at 4500 fps into 2liter sodas bottles and 1gal jugs in a 7 twist barrel up close.
From shooting both of these at as close to equal pressures with the best accuracy with h4350 I have determined the 90gr ah is the better bullet for my uses. Less drop and drift, short and close range even though they run 180fps slower than the 75s (3750fps vs 3930fps)
I tried crimping and not crimping, In bolt rifles I don't do it unless it really tightens up a load or it's a heavy recoiling DG rifle. But it never hurts to try both and go off the results.
They are both great bullets and I always like shooting several to see what the rifle likes. I've compared the 75HH,90AH, and 92HH with h4831sc, rl26, and h4350. All have shot well below half moa. IMO from zero to 800 yards it hard to beat the 90AH at 257WBY speeds.
And if you want some entertainment shoot some 67gr sledge hammers at 4500 fps into 2liter sodas bottles and 1gal jugs in a 7 twist barrel up close.
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Wow! Ca48 do I have your rifle and load data? Please share rifle, bbl length,twist, brass, primer, oal, powder, vels and any notes! Much appreciated!
cacsrx,
Care to share your rifle, barrel, twist, Oal, primer and load?
Care to share your rifle, barrel, twist, Oal, primer and load?
Factory Accumark 1-10 twist, oal is 20thou shorter than the magazine, fed 215m primer, and a charge of 4831sc in the high 70's.
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