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Joined: Dec 2013
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Campfire Ranger
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OP
Campfire Ranger
Joined: Dec 2013
Posts: 23,686 Likes: 1 |
Real world velocity gain if comparing same/similar set up? 75gr bullet at same pressure out of the same barrel.
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Joined: Apr 2011
Posts: 15,314 Likes: 2
Campfire Ranger
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Campfire Ranger
Joined: Apr 2011
Posts: 15,314 Likes: 2 |
It’s gotta be a 100 or better if not more. I think it kinda allows you to step down to a slower powder with the extra case space but I’ll be watching to see what others get. I’ve got that 1-7 Hawk Hill ready to rip. Kinda wanna strap it to a Montana though.
Semper Fi
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Joined: Mar 2011
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Campfire Regular
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Campfire Regular
Joined: Mar 2011
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Joined: Sep 2003
Posts: 23,474 Likes: 9
Campfire Ranger
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Campfire Ranger
Joined: Sep 2003
Posts: 23,474 Likes: 9 |
Real world velocity gain if comparing same/similar set up? 75gr bullet at same pressure out of the same barrel. Hornady load data shows 3350 as max for 75s in the 22-250. Superperformance. That’s with a 24” barrel. You could probably do same with a 20” barrel in the 22 Creed.
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Joined: Dec 2004
Posts: 17,246
Campfire Ranger
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Campfire Ranger
Joined: Dec 2004
Posts: 17,246 |
I've read of measured case capacities being about 45gr vs 52gr. That's about a 15% bump, which should indicate around a 4% velocity bump if pressure is held constant. Using a 3200fps MV, that should point to something like a 130fps gain for the Creedmoor, or at least something in that ballpark. I've also read reports from shooters that saw 100-150fps difference when owning both chamberings.
Now with even more aplomb
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Joined: Nov 2013
Posts: 28,836 Likes: 8
Campfire Ranger
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Campfire Ranger
Joined: Nov 2013
Posts: 28,836 Likes: 8 |
Some, but the twist is what really matters, assuming there are actually any .22 CM factory guns available. There are gazillions of .22/250s, past and present, if you can live with the standard rate of spin, which Eastern varmint hunters probably can.
Then there's the question of ammunition. While many or most here are handloaders, that’s not the case overall, and it’s a real concern for some.
What fresh Hell is this?
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Joined: Nov 2013
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Campfire Tracker
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Campfire Tracker
Joined: Nov 2013
Posts: 3,788 |
I've owned a 3 fast twist 22-250s,you can figure on 3150 fps, give or take with a 22" barrel and a 75.
The same powders and bullets have given me 3350-3400fps in 2 22-250 AIs and 2 22 creedmoors. The 22-250 AIs were 22" barrels and the 22 creedmoors were 20" and shot surpressed
Pretty sure you could stand on the creedmoor a bit more but I don't see the need.
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Joined: Nov 2013
Posts: 28,836 Likes: 8
Campfire Ranger
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Campfire Ranger
Joined: Nov 2013
Posts: 28,836 Likes: 8 |
One of those would probably be the smart choice for Joe Average, if it can be found. If he ever starts handloading, the barrel would be ready for long ones.
What fresh Hell is this?
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Joined: Dec 2013
Posts: 23,686 Likes: 1
Campfire Ranger
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OP
Campfire Ranger
Joined: Dec 2013
Posts: 23,686 Likes: 1 |
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Joined: Dec 2013
Posts: 23,686 Likes: 1
Campfire Ranger
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OP
Campfire Ranger
Joined: Dec 2013
Posts: 23,686 Likes: 1 |
Some, but the twist is what really matters, assuming there are actually any .22 CM factory guns available. There are gazillions of .22/250s, past and present, if you can live with the standard rate of spin, which Eastern varmint hunters probably can.
Then there's the question of ammunition. While many or most here are handloaders, that’s not the case overall, and it’s a real concern for some. I’m talking hand loading with a 1-7” barrel of same length. Could care lesss about factory ammo availability.
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Joined: Aug 2010
Posts: 48,113 Likes: 12
Campfire 'Bwana
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Campfire 'Bwana
Joined: Aug 2010
Posts: 48,113 Likes: 12 |
Some, but the twist is what really matters, assuming there are actually any .22 CM factory guns available. There are gazillions of .22/250s, past and present, if you can live with the standard rate of spin, which Eastern varmint hunters probably can.
Then there's the question of ammunition. While many or most here are handloaders, that’s not the case overall, and it’s a real concern for some. I’m talking hand loading with a 1-7” barrel of same length. Could care lesss about factory ammo availability. Are you thinking about buying a factory rifle, or are you going to have one built? There's no doubt the creed kicks the 22-250's azz. Don't get any more simpler than that. You are wanting to shoot 75's from what I gather. As you should know, the 22-250 with a 1 in 8" twist (as in the Tikka with that twist rate), can stabilize up to an 88gr bullet. How many factory rifles are chambered for the 22Creed? How easy do you want to make it on yourself?
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
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Joined: Jan 2001
Posts: 58,567 Likes: 10
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2001
Posts: 58,567 Likes: 10 |
Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
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Joined: Dec 2013
Posts: 23,686 Likes: 1
Campfire Ranger
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OP
Campfire Ranger
Joined: Dec 2013
Posts: 23,686 Likes: 1 |
Some, but the twist is what really matters, assuming there are actually any .22 CM factory guns available. There are gazillions of .22/250s, past and present, if you can live with the standard rate of spin, which Eastern varmint hunters probably can.
Then there's the question of ammunition. While many or most here are handloaders, that’s not the case overall, and it’s a real concern for some. I’m talking hand loading with a 1-7” barrel of same length. Could care lesss about factory ammo availability. Are you thinking about buying a factory rifle, or are you going to have one built? There's no doubt the creed kicks the 22-250's azz. Don't get any more simpler than that. You are wanting to shoot 75's from what I gather. As you should know, the 22-250 with a 1 in 8" twist (as in the Tikka with that twist rate), can stabilize up to an 88gr bullet. How many factory rifles are chambered for the 22Creed? How easy do you want to make it on yourself? Rebarrel on a push feed 70 in a McMillan FWT pattern. Brass and dies in hand was my only real motivation to go .22-250, but the juice sounds like it’s worth the squeeze
Last edited by jackmountain; 02/23/24.
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Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2001
Posts: 58,567 Likes: 10 |
Rest fhuqking ASSURED,that BullSchitArtist has never even fhuqking "seen" one,as she's still trying to get 108's in her 6x45 upper. HINT. Fhuqking LAUGHING!...................
Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
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Joined: Nov 2013
Posts: 28,836 Likes: 8
Campfire Ranger
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Campfire Ranger
Joined: Nov 2013
Posts: 28,836 Likes: 8 |
Some, but the twist is what really matters, assuming there are actually any .22 CM factory guns available. There are gazillions of .22/250s, past and present, if you can live with the standard rate of spin, which Eastern varmint hunters probably can.
Then there's the question of ammunition. While many or most here are handloaders, that’s not the case overall, and it’s a real concern for some. I’m talking hand loading with a 1-7” barrel of same length. Could care lesss about factory ammo availability. Lets see it when it’s done.
Last edited by Pappy348; 02/23/24.
What fresh Hell is this?
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Joined: Apr 2004
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2004
Posts: 42,835 Likes: 4 |
In a Ruger rebarreled to a 22.250 with a one in 7 twist. With 80 grain bullets ( and 75s also ), using RL 15, it gives me consistent and accurate, 3350 fps MV. 4064 will give me 3300 fps.
No pressure issues and a batch or two of brass has seen 20 plus reloads now.
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
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Joined: Dec 2002
Posts: 32,220
Campfire 'Bwana
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Campfire 'Bwana
Joined: Dec 2002
Posts: 32,220 |
I've read of measured case capacities being about 45gr vs 52gr. That's about a 15% bump, which should indicate around a 4% velocity bump if pressure is held constant. Using a 3200fps MV, that should point to something like a 130fps gain for the Creedmoor, or at least something in that ballpark. I've also read reports from shooters that saw 100-150fps difference when owning both chamberings. ^^^^^ THIS ^^^^^ If you're actually getting significantly higher velocities than those easily calculated via Mule Deer's 4-1 ratio rule of thumb, you can be sure that you're also getting that performance bump through significantly higher operating pressures.
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