75grn Hornady BTHP and 1:9 Stabilization?

CyaN1de

CyaN1de

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Does anyone know if the 1:9 twist is fast enough to stabalize a 75grn BTHP Traditional Match bullet (Not Amax)

I would like to try these out to 300M in my Savage .223 LRPV but would like to know if anyone else has tried them with any success before I go and waste time, bullets and powder on keyholes.
If so can you give load details as well?

Thanks
Richard
 
I am off to Seirra shoot this morning at Connaught Ranges In Ottawa, you have 1.30min to fire 60 rounds for score unlimited sighters at 300 meters, never done this before, the load I have is using the Hornady 75 gr BTHP with Varget powder, 2920fps the best groups I have gotten is 1.60 at 300 yards but there was always conditions and I am not very good at wind reading,my brother fired 12 shots at 900 meters and this load was fine he got 9 V bulls
we both are shooting Rem Police 26" stock rifles, If anyone in Ottawa area in next 2 weeks they should drop by lots of Target and some F class shooting Canadian champions & second week the World Championships Target rifle it is quite a sight with flags of countrys from all around the globe, the firing range is over 500 yards long and 1000 long pretty impressive
 
Definatly go see Connaught if you haven't before. It's the kind of range most of us can only dream about...

I had an LTR that refused to shoot 75 amax, but did ok with the bthp. Also did an acceptabel job with the 75 Berger VLD, which kicks the hornady soundly in the butt.
 
ebruder said:
While I don't handload... my 12FV will handle GMM 77gr, and Black hills 75 and 77gr bullets at 300m no problem

EB
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beltfed said:
My load is 24.5 grains of Varget, 75gr. HPBT, Winchester cases, & either CCI BR4 or Federal 205M primers.
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Thanks guys, I knew a 1:8 would stabilize these no problem, but I was unsure about the 1:9 twist rate and the heavier bullets.
 
Well I picked up a box of 100 today to try out. Hopefully I get some good results. I had GREAT results in my Savage with the 68grn HPBT's and Varget this week so I am hoping for at least as good or better with the 75's.
 
CyaN1de said:
Well I picked up a box of 100 today to try out. Hopefully I get some good results. I had GREAT results in my Savage with the 68grn HPBT's and Varget this week so I am hoping for at least as good or better with the 75's.
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What powder charge and seating length do you use for the 68 gr and plan to use for the 75 gr projectiles?
 
agent_mango said:
What powder charge and seating length do you use for the 68 gr and plan to use for the 75 gr projectiles?
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I was running the 68's into the lands of my savage and will do the same for the 75's. Your C.O.L. will be different than mine so telling you my C.O.L. would be a moot point. I just received my Bullet Comparator in the mail on Friday so I will now be able to measure to the ogive rather than the meplat.

Powder charge for the 68's was 24grns of Varget with a CCI 450 Primer in weighed and separated by .5grn increment Winchester cases.
 
Hornady 75

With my Rem700P, .223 1:9 twist 26inch bbl the Hornady 75's were at best marginal, they are theoretically too long to stabalize. Sierra SMK 77gn bullets are actually shorter and stabalize well in my rifle, I have shot these out to 600 yards with good results, hope this helps!

22477&75.jpg
 
What are you guys buying in .223 that has the 1-9 or 1-8 twist? Are these straight off the wall rifles, or are you building up a target rifle?
 
Curt said:
What are you guys buying in .223 that has the 1-9 or 1-8 twist? Are these straight off the wall rifles, or are you building up a target rifle?
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My Savage LRPV is a 1:9 twist. Tikka T3 and T3 Lite come in a 1:8 twist and Remington LTR and P models come in 1:9 twist off the shelf.
 
roberti11 said:
With my Rem700P, .223 1:9 twist 26inch bbl the Hornady 75's were at best marginal, they are theoretically too long to stabalize. Sierra SMK 77gn bullets are actually shorter and stabalize well in my rifle, I have shot these out to 600 yards with good results, hope this helps!

22477&75.jpg
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Great records.....thanks for that.

Are your MOA and Stability records switched on your Hornady's?
How do you figure out stability?
 
Last edited:
Nice post with the data but totally the wrong bullet. He's listed the A-MAX bullet when the bullet being referred to is the 75 gr. HPBT Match bullet. Different animal.
 
Hornady 75

2bad4u2 said:
Nice post with the data but totally the wrong bullet. He's listed the A-MAX bullet when the bullet being referred to is the 75 gr. HPBT Match bullet. Different animal.
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You are absolutly correct, my screw up :bangHead:

The Hornady 75gn HPBT is .980 in length similar to the SMK 77gn as far as length, I suspect they should shoot the same, but I have no experience with these.

And, no the stability and group size are not mixed up, the 75gn Amax bullets, shot poorly in my rifle.

Thanks for pointing out my error:)
 
roberti11 said:
You are absolutly correct, my screw up :bangHead:

The Hornady 75gn HPBT is .980 in length similar to the SMK 77gn as far as length, I suspect they should shoot the same, but I have no experience with these.

And, no the stability and group size are not mixed up, the 75gn Amax bullets, shot poorly in my rifle.

Thanks for pointing out my error:)
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I hear a number of shooters who simply use the same propellant charge weight and substitute one for the other.

The Sierra 77's are considerably more expensive than the Hornady's, are they not?
 
I'm curious about the stability measurement as well. Never heard of it before, how do you measure it?

roberti11 said:
With my Rem700P, .223 1:9 twist 26inch bbl the Hornady 75's were at best marginal, they are theoretically too long to stabalize. Sierra SMK 77gn bullets are actually shorter and stabalize well in my rifle, I have shot these out to 600 yards with good results, hope this helps!
Click to expand...
 
2bad4u2 said:
I hear a number of shooters who simply use the same propellant charge weight and substitute one for the other.

The Sierra 77's are considerably more expensive than the Hornady's, are they not?
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Yes the Sierra's are more than the Hormady's. This was my initial reason why I was asking about the 75grn BTHP Match bullets in the first place.

2bad4u2: Did you receive my PM? Haven't heard back from you.



.
 
also, the 77's are heavier, but I seem to remember that they have a lower BC. Could be wrong, but I think the 75 is a better bullet if loading in a bolt gun w/o a cramped mag.
 
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