I am looking at building a rifle in one of these 2 calibers some of the info I’ve gotten of the internet is marginal at best comparing the 2. All things equal as gas as bullet weight and barrel length which one wins in velocity? I’m wanting to shoot a 75-80 gr around 3600 with a 24” barrel and 8 twist.
22-250ai vs 22creedmoor
- Thread starter Eastex
- Start date
Originally Posted By: EastexI am looking at building a rifle in one of these 2 calibers some of the info I’ve gotten of the internet is marginal at best comparing the 2. All things equal as gas as bullet weight and barrel length which one wins in velocity? I’m wanting to shoot a 75-80 gr around 3600 with a 24” barrel and 8 twist.
They'll have nearly the exact same case capacity so unless you just really like fire forming, the 22 Creedmoor, IMO, is the more sensible choice. Especially, since you can buy 22 Creedmoor brass that is ready to go right out of the box.
Also, unless you are just driving the bejeezus out of them and running things well into the redline, you aren't going to get 3600fps from a 75-80gr bullet with a case this size. Oh, I'm sure there will be some that come on and say they're getting those kinds of speeds, easily, and with no signs of pressure, but that's just a load of bull.
They'll have nearly the exact same case capacity so unless you just really like fire forming, the 22 Creedmoor, IMO, is the more sensible choice. Especially, since you can buy 22 Creedmoor brass that is ready to go right out of the box.
Also, unless you are just driving the bejeezus out of them and running things well into the redline, you aren't going to get 3600fps from a 75-80gr bullet with a case this size. Oh, I'm sure there will be some that come on and say they're getting those kinds of speeds, easily, and with no signs of pressure, but that's just a load of bull.
Originally Posted By: B23
They'll have nearly the exact same case capacity...
They will? I've never really looked at a CM case. So I don't really know. Have always "heard" the CM capacity is close to the .22-243 though. Which is considerably more than the .22-250AI.
I don't actually know what the capacity of the CM is. Typical internet stuff, I guess, me talking about a case I've never even looked at.
I've owned and wore out a small handful of .22-250AI barrels including two 8 twists that were 29" though. Getting 3600 with 80s in a 24" '250AI is kooky talk.
- DAA
They'll have nearly the exact same case capacity...
They will? I've never really looked at a CM case. So I don't really know. Have always "heard" the CM capacity is close to the .22-243 though. Which is considerably more than the .22-250AI.
I don't actually know what the capacity of the CM is. Typical internet stuff, I guess, me talking about a case I've never even looked at.
I've owned and wore out a small handful of .22-250AI barrels including two 8 twists that were 29" though. Getting 3600 with 80s in a 24" '250AI is kooky talk.
- DAA
Originally Posted By: DAAOriginally Posted By: B23
They'll have nearly the exact same case capacity...
They will? I've never really looked at a CM case. So I don't really know. Have always "heard" the CM capacity is close to the .22-243 though. Which is considerably more than the .22-250AI.
I don't actually know what the capacity of the CM is. Typical internet stuff, I guess, me talking about a case I've never even looked at.
I've owned and wore out a small handful of .22-250AI barrels including two 8 twists that were 29" though. Getting 3600 with 80s in a 24" '250AI is kooky talk.
- DAA
Yes, the 22-250AI and 22 Creedmoor are very close to the same size with regard to case capacity. For me, it would be a no brainer and a 22 Creedmoor would be an easy choice over the 22-250AI for the simple fact there is no fire forming. Is fire forming a big deal, not particularly but if you can avoid it and get the same results by using a different case, and it still fits in a short action, again, that'd be a very easy choice for me.
I have no doubt there are folks running their 22-250AI's or the like, well into the redline and are seeing crazy fast speeds but it doesn't mean it's a good idea, but hey, it sure does sound cool.
They'll have nearly the exact same case capacity...
They will? I've never really looked at a CM case. So I don't really know. Have always "heard" the CM capacity is close to the .22-243 though. Which is considerably more than the .22-250AI.
I don't actually know what the capacity of the CM is. Typical internet stuff, I guess, me talking about a case I've never even looked at.
I've owned and wore out a small handful of .22-250AI barrels including two 8 twists that were 29" though. Getting 3600 with 80s in a 24" '250AI is kooky talk.
- DAA
Yes, the 22-250AI and 22 Creedmoor are very close to the same size with regard to case capacity. For me, it would be a no brainer and a 22 Creedmoor would be an easy choice over the 22-250AI for the simple fact there is no fire forming. Is fire forming a big deal, not particularly but if you can avoid it and get the same results by using a different case, and it still fits in a short action, again, that'd be a very easy choice for me.
I have no doubt there are folks running their 22-250AI's or the like, well into the redline and are seeing crazy fast speeds but it doesn't mean it's a good idea, but hey, it sure does sound cool.
Forming? What forming?
Load the rounds, and shoot them. First round might not be a full hot rod load, but still accurate and usable.
I often wonder about numbers people post for velocity. Maybe my chronograph reads low, but it sure seems people are full of it, don't actually have a chronograph, or run stuff way too hot.
Load the rounds, and shoot them. First round might not be a full hot rod load, but still accurate and usable.
I often wonder about numbers people post for velocity. Maybe my chronograph reads low, but it sure seems people are full of it, don't actually have a chronograph, or run stuff way too hot.
Originally Posted By: B23
Yes, the 22-250AI and 22 Creedmoor are very close to the same size with regard to case capacity.
Interesting. I haven't ever seen actual capacity data, so I really did not know. Have just read several times, not necessarily authoritative sources, mind you, that the CM is close to the .22-243. Which is a lot more capacity than the '250AI.
- DAA
Yes, the 22-250AI and 22 Creedmoor are very close to the same size with regard to case capacity.
Interesting. I haven't ever seen actual capacity data, so I really did not know. Have just read several times, not necessarily authoritative sources, mind you, that the CM is close to the .22-243. Which is a lot more capacity than the '250AI.
- DAA
Huckleberry75
Member
24"bbl with a 75gn VLD in a 22cm at 3600 is certainly do-able. Look at H4350, R-26 or Varget (Varget is more for 69's).
I run a 22cm with a 22" 8twist, and use H4350 to get the 80.5's running 3393 fps out of Lapua or Hornady brass. It does impolite things to critters and is not bucking pressure. I could lean on it some more, but it shoots exceptionally well and I am plenty happy with it's results. You can probably get the 75's to run in that speed zone, but you might be doing so at the expense of your barrel. Given that barrels are a consumable commodity, its understood that they eventually wear out and require replacement, but I don't see a need to hasten that chore. Each unto his own though. If you want, drive it like you stole it, just be sure to post results up here.
I run a 22cm with a 22" 8twist, and use H4350 to get the 80.5's running 3393 fps out of Lapua or Hornady brass. It does impolite things to critters and is not bucking pressure. I could lean on it some more, but it shoots exceptionally well and I am plenty happy with it's results. You can probably get the 75's to run in that speed zone, but you might be doing so at the expense of your barrel. Given that barrels are a consumable commodity, its understood that they eventually wear out and require replacement, but I don't see a need to hasten that chore. Each unto his own though. If you want, drive it like you stole it, just be sure to post results up here.
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I don’t know if you will do it out of a 24” barrel in a 22 creedmoor, 22-250ai or even the 22-243. You would be very close with a 22-243ai I would think. I have a standard 22-243 and with a 26” barrel and surpressor I’m getting 3560 with a 75g A-Max. So with an 80 I don’t know what you would get. I have seen velocity number from 22-243s with 75 g A-Max’s posted anywhere from 3400-3700. I’m using h4831sc but powders to look into are h4350, rl17,22,25,26 maybe rl16, h4831 h1000. Them are what I would look at anything in them burn rates. Just my thoughts and experiences.
brdeano
New member
Originally Posted By: DAAOriginally Posted By: B23
They'll have nearly the exact same case capacity...
They will? I've never really looked at a CM case. So I don't really know. Have always "heard" the CM capacity is close to the .22-243 though. Which is considerably more than the .22-250AI.
I don't actually know what the capacity of the CM is. Typical internet stuff, I guess, me talking about a case I've never even looked at.
I've owned and wore out a small handful of .22-250AI barrels including two 8 twists that were 29" though. Getting 3600 with 80s in a 24" '250AI is kooky talk.
- DAA
I'm with you. My real world experience with a 1-8" tw 22-250AI and 75Amax's is with 2 rifles and I'd not be shooting with a guy who was getting 3600 with them. 3400-3450 is all I've gotten out of my 2 barrels. But hey, it is the internet.
They'll have nearly the exact same case capacity...
They will? I've never really looked at a CM case. So I don't really know. Have always "heard" the CM capacity is close to the .22-243 though. Which is considerably more than the .22-250AI.
I don't actually know what the capacity of the CM is. Typical internet stuff, I guess, me talking about a case I've never even looked at.
I've owned and wore out a small handful of .22-250AI barrels including two 8 twists that were 29" though. Getting 3600 with 80s in a 24" '250AI is kooky talk.
- DAA
I'm with you. My real world experience with a 1-8" tw 22-250AI and 75Amax's is with 2 rifles and I'd not be shooting with a guy who was getting 3600 with them. 3400-3450 is all I've gotten out of my 2 barrels. But hey, it is the internet.
Wildman Wells
Member
I would think the 22-243 or the 224TTH will do what you want to do.
Wildman Wells
Member
Ackley man - Who would chamber the 22-6mm AI these days?
Winny Fan
New member
Originally Posted By: Wildman WellsAckley man - Who would chamber the 22-6mm AI these days?
And good gunsmith who doesn't have a reamer will split the cost of one or will just buy it outright if that is what a customer wants.
I currently know of three gunsmiths in my area who have 22-6MM AI reamers and straight 22-6MM reamers. It' not like looking for the Holy Grail in my AO.
And good gunsmith who doesn't have a reamer will split the cost of one or will just buy it outright if that is what a customer wants.
I currently know of three gunsmiths in my area who have 22-6MM AI reamers and straight 22-6MM reamers. It' not like looking for the Holy Grail in my AO.
Originally Posted By: Wildman WellsAckley man - Who would chamber the 22-6mm AI these days?
I'd look at building a 22-284 instead of a 22-6mm AI. Not only is brass quality significantly better but the availability is much better as well, and, it'll work better in a short action.
I'd look at building a 22-284 instead of a 22-6mm AI. Not only is brass quality significantly better but the availability is much better as well, and, it'll work better in a short action.