22 GT vs Creed

[TradLife406]

I ended up with Grandpas Browning highwall B78 in 22-250. It's a great gun. I had the barrel threaded last year and with a can it's like an unsuppressed 22 lr.
But when I last cleaned the barrel I noticed a lot of "cracks/lines" going the diameter of the bore all the way down.
And it won't even shoot a 50 gr vmax with varget. Factory isn't much better. Like 2-4 moa.

Thinking about getting a new barrel. I'm leaning hard on 22 GT since alpha has brass and Hodg has load data. Don't really care about buying factory.

I was going over Hodg data yesterday and there doesn't seem to be much difference between the creed or the GT. Kind of thinking a 22" barrel with a can.

Pretty sure the b78 extractor can grab either head case.

Anyone know which has the better barrel life? Is the GT a little better than the 22-250?

Seems the 22-250 is sort of falling off. The only brass I can find is Hornady which is sort of blah.

 

[sierracharlie338]

If you base barrel life off powder capacity the GT would have a slight edge as long as everything else is the same. Otherwise I think it’s 6 for one and half a dozen for the other in terms of performance with the creed having a touch more velocity.

 

[Fireflyfishing]

Either will work. There’s nothing wrong with the 22-250. Although dated, it’s a very capable cartridge. Especially with a faster twist like 1:8”.

 

[wind gypsy]

The GT case has basically the same capacity as a 22-250 IIRC. It's the modern version without all the body taper. That's the direction I'd go to get better brass than 22-250, have less case stretch, and be less overbore than 22 creed.

 

[TradLife406]

The GT case has basically the same capacity as a 22-250 IIRC. It's the modern version without all the body taper. That's the direction I'd go to get better brass than 22-250, have less case stretch, and be less overbore than 22 creed.

I've wanted an ackley 22-250 but the GT seems the easy button.

 

[Castle Rock]

GT all the way

 

[Juan_ID]

Early 2024 I was going through the same debate, decided on the GT. Will have another barrel coming soon for when this one is shot out. Have just under 1k rounds now and it’s still shooting good.

 

[khuber84]

There is a 150fps difference between them with equal weight bullets from same barrel lengtha using H4350 from my testing.

 

[G&W]

Went through the same thought process last year, trying to decide between a fast twist 22-250, 22 CM, or 22 GT. I have maybe 1000 22-250 cases that have only been fired once or twice plus custom honed Forster dies and a ten round MDT 22-250 magazine, so I was leaning that direction, but ultimately decided on the GT. Glad I did. It’s fast and (relatively) efficient and I probably won’t need to trim the cases. Alpha OCD brass is really good. The GT case size reminds me of the 6.5x47 case in that it’s well balanced.

Planning to use my existing 22-250 parts for a dedicated thermal 22-250 AI project down the road since I would rather loose the Winchester brass than the Alpha brass, and I have always wanted to “improve” it anyway.

 

[nm.otter]

The GT case has basically the same capacity as a 22-250 IIRC.

Capacity is close -- but .22 GT has more than twice as much room in front of it for the bullet (see Nose column below):


.22 GT has effectively the same case capacity to bore area ratio as 6mm Creedmoor and .270 Winchester.

.22 Creedmoor shares its ratio with .277 WSM, 6.5 mm PRC, 7mm PRC, and 7mm Rem Mag.

 

[wind gypsy]

Capacity is close -- but .22 GT has more than twice as much room in front of it for the bullet (see Nose column below):
View attachment 904140

Why is it you're limiting 22-250 to 2.350" COAL? Seems like you're creating a constraint that shouldn't exist there. And who's loading 223 to 2.13"? Far as I see it, 22-250 has just as much room in front of it for the bullet because you shouldn't be running out of mag space to seat a 22 cal bullet wherever you want it.

If a guy is doing aftermarket barrel, seems a lot of these types of comparisons can be misleading based on what the actual throat/mag constraints are or aren't.

 

[nm.otter]

Why is it you're limiting 22-250 to 2.350" COAL?

Case and cartridge lengths taken from SAAMI drawings.

Who's loading 223 to 2.13"?

Looks like I copied the COL from .222 Rem -- fixed. Thank you.

 

[wind gypsy]

Case and cartridge lengths taken from SAAMI drawings.

That is giving you misleading results, at least for handloaders.

 

[Kaleb]

Yea when talking new barrels chambers and handloads forget saami. I never loaded a 223 to 2.26 until I got a AR. Mine start around 2.480 and with 88’s I’m 2.515.

 

[nm.otter]

I put that sheet together last year to help me compare cartridge options for a build.

Custom chambers were not factored in when I added Nose calcs last month.

 

[wind gypsy]

I put that sheet together last year to help me compare cartridge options for a build.

Custom chambers were not factored in when I added Nose calcs last month.

Custom chamber not needed. Even nosler data has 2.6” coal, could probably load some bullets longer yet and not be in the lands in a saami chamber.