25 DTI vs 6mm Creedmore

9

999999999

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Hello to everyone, new member here!

I’m an avid coyote and pig hunter. I’ve been playing around with a few different calibers/rifles over the last couple of years for my thermal hunting. Been doing some research and stumbled across the 25 DTI caliber.

When we started the thermal hunting game we started out with 556 and quickly moved up to 308. Then made a switch to 6.5 grendel and now using the 6mm creedmore. Seemed like the grendel was good at the coyotes but not so good on the pigs at running shots, when shot placement wasn’t the greatest. The 6 mm creedmore seems to be the best so far. My current load is 100 grain hornady interlocks traveling at 2900 fps. The problem with this gun is it’s heavy and long, which makes it unpleasant to hunt with when you’re traveling from field to field. Adding a suppressor makes it even worse with a 22 inch barrel.

After some reading on the forums and talking to dtech, seems like I can get close to the same performance with a 90 to 100 grain bullet out of the 25 dti. Ultimately, I want something lighter, shorter and better handling. I would probably develop a lighter coyote load and heavier pig load.

Anyone go down this route? It’s obviously not an inexpensive upgrade to do this especially with the availability of reloading components and cost of the upper. Just don’t want to go backwards.
 
Welcome aboard.

Not quite the same but I needed a deer rifle for a hunt I was invited to and had nothing between a 6x45 and a 35 Whelen. But I did have a spare 223 action sitting there. I looked seriously at the 257 Kimber and just at that time the 204 Ruger was being released, low and behold the 204 case was pretty much of a clone to the Kimber and just needed necking up.

So I built a 25-204, pretty simple really, PacNor chambered a .25 cal barrel with a 204 reamer and then cut the neck and throat to my dummy rounds. For deer it was perfect duplicating original 250-3000 and 257 Roberts ballistics 100gr Partition at 2800+ fps and 75gr V-max at 3150fps both out of a 21" barrel. The 25-204 proved to be too much for pelt hunting coyotes leaving large exits, the only way I could keep one of those 75gr Vmax was to shoot them the long way. I think the 85gr NBT's at 3000 fs would be perfect for javelina, antelope, smaller deer and the NPT's for large northern deer. I've never lived where there are hogs but my deer have gone into the 400# range.

If I were building a hot .257 to fit an AR action I'd be looking at the 25 WSSM but I really feel that you will be hard pressed to beat the 6.5 Grendel with 100gr Partition for larger game and the 90gr Speer TnT for coyotes and the like if you're not saving pelts.

25 WSSM AR
https://www.bing.com/search?q=25+wssm+ar...B01&PC=U531

The Creedmore needs an AR-10 and the 25 DTI works in an AR-15, if these are your two choices, I'd go with the 25 DTI or even the 6.5 DTI if knock down power is your goal
 
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Welcome to forum, nice to have new members posting.

I think to be fair, I'd have to ask what is your intent on the coyote hides?? Its pretty impossible to have something fur friendly on coyotes that bangflops hogs from the same platform but honestly a 243 in an AR10 offers the most versatility IMO.

In today's gun world you have to take into consideration components and factory options and no single caliber trumps the old 243s versatility. Its funny because I have ran a multitude of calibers over the years and I just finished up a new lightweight AR10 in 243, going back to a caliber design from the 50s!!
 
I posted this in your other thread asking the same question... welcome BTW.

Your consideration for change seems to center around better results with not so good shot placement... if so, you're going to be disappointed.

The 6mm CM isn't going to do any better with lack-luster shot placement.

A 123gr SST from a 6.5G at about 2600 FPS is notably subpar to a 6mm CM's 100gr load at 2900 FPS? No.

I assume DTI data is in between or close, if so, it's a wash.

You don't need a better cartridge, you need better hits. I've killed all kinds of stuff (hogs, deer, coyote) with .223, 6.5G, 6.8SPC, .308 Win., .30-.30, 6mmx45mm, yada, yada, yada and neither failed to deliver a dead corpse with a respectable hit and no one cartridge outshined the other on bad hits.
 
When I wrote my reply I sat down and did a little figuring and have killed deer with 23 different rifle calibers, 4 different caliber muzzle loader round balls and 2 different gauges of shotgun slugs

They all killed deer just fine. Funny they all worked.

I'm a pelt hunter and have killed coyotes with everything from a 22 Mag thru 6.5 Grendel. Once you get out of the .204 to .224 saving pelts gets iffy(a lot of sewing). But from .204 to .224 they look good and rarely have to chase one down and those have been poor hits. Going bigger doesn't kill them any faster just ruins pelts.
 
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Welcome 9s. I'm guessing you're talking various ar's here, hence the weight problem with the creedmoor. IMO, there's just not much difference between a 25 dti and a 6.5 G with same weight bullets. Case capacities are virtually identical with a bit of a pressure edge to the dti, but I don't know that I'd go to that expense if you're already not happy with the Grendel.

I went with a lightish weight 243 AR after playing with the small ar wildcats for years. They were all fun, and come really close in performance but not quite there compared to the bigger rounds. They do have an advantage in barrel life and powder consumption though.

For a dual purpose role, it's too bad the 30 RAR didn't live on. It would have thumped hogs and was flat enough for 250 yd coyotes and fit in an ar15. I have 2 of them and they're impressively accurate and capable.

In your case since you have a Grendel already, I'd focus on better bullets and run that. Look at Hammer bullets sometime, they guys on Longrangehunting.com swear by them, they seem to be very accurate and can be pushed faster than normal at safe pressures. They aren't cheap, but neither are new uppers.
 
Fur friendly is not important to me. We mostly hunt coyotes in Ohio and the fur has no value to us. We just hunt to eradicate them.

Unfortunately, it’s true that shot placement is not the best when we’re hog hunting. We get on a good group, we just let it rip and shoot them out. I have definitely noticed the 6 creedmoor and 308 does a better job on the hogs, especially with bad shot placement, than the grendel. My current load is a 120 grain nosler with the brown tip. Don’t have the fps with me right now but the lighter creedmore definitely seems to do better with 100 gran bullet traveling At 2900 fps. I’m happy with the 6 creedmoor, just not happy with the long barrel and weight of the gun. Seems like the 6 creedmoor barrels need to be little longer.

Maybe I should think about building a lighter 243 winchester or 6mm creedmore. I do have a bunch of h4350 powder on hand. I’d like a rifle with no longer than a 20 inch barrel at no more than 7.5 pounds. Doesn’t seem like many manufacturers make 243 winchester barrels for an ar10.
 
Originally Posted By: 999999999Fur friendly is not important to me. We mostly hunt coyotes in Ohio and the fur has no value to us. We just hunt to eradicate them.

Unfortunately, it’s true that shot placement is not the best when we’re hog hunting. We get on a good group, we just let it rip and shoot them out. I have definitely noticed the 6 creedmoor and 308 does a better job on the hogs, especially with bad shot placement, than the grendel. My current load is a 120 grain nosler with the brown tip. Don’t have the fps with me right now but the lighter creedmore definitely seems to do better with 100 gran bullet traveling At 2900 fps. I’m happy with the 6 creedmoor, just not happy with the long barrel and weight of the gun. Seems like the 6 creedmoor barrels need to be little longer.

Maybe I should think about building a lighter 243 winchester or 6mm creedmore. I do have a bunch of h4350 powder on hand. I’d like a rifle with no longer than a 20 inch barrel at no more than 7.5 pounds. Doesn’t seem like many manufacturers make 243 winchester barrels for an ar10.

As you probably already know, but can be forgotten in the heat of the moment when hogs scatter and the fun begins, hogs require a more forward and elevated hit.
 
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