Could a 220 swift rifle chamber a 6.5 creedmoor?

[windsaloft]

I have a couple of classic Ruger M77v chambered in 220 swift which are fun to shoot. One is stamped with 'Made In The 200th Year of American Liberty' and which still works well (needs an upgrade to a 1:12 twist barrel). Was planning to pick up a Ruger Hawkeye Hunter in 6.5 creedmoor, started looking at the cartridge specs, and then it dawned on me. The 6.5 creedmoor case looks almost like a resized 220 swift: the rim and extractor grooves seem to share the same configuration with rim diameter of 0.473 inch, case diameter for the creedmoor is 0.470 while the swift is 0.447 (only 0.023 diff), plus the overall case length of the creedmoor is 1.920 vs. 2.205 for the swift. Question arises: would a 220 (5.56mm) swift rifle chamber the 6.5mm creedmore with the shorter case? To test you could try an empty creedmoor case topped with a 6.5 bullet and see if it chambers in the 220. If it does then obviously chambering and firing a real round would be disasterous. Did anyone ever test this??

 

[6ShotsOr5?]

I think the answer is no because the 6.5 Creed has less body taper. The 6.5 Creed shoulder will stop it from going in all the way. I’m not sure about this, but just looking at pictures of some different cases. Edit, found some dimensions. The shoulder diameter of a 6.5 Creed case is larger (.462 in) than the base diameter of a .220 Swift case (0.445 in).

 

[Dusty Stevens]

^exactly

 

[Dwayne Cyr]

Don't know about those two but I was present at a public sight in event at our range. There was a strange sound like a blooper. We converged on the guy and told him not to fire any more until we checked his bore for a stuck bullet. I believe he put a 6.5 Swede cartridge into a 300 WSM chamber. It fired and sounded different. The 6.5 bullet rattled down the .30 bore.

 

[6MMsteve]

swift has a heavy taper

 

[Dusty Stevens]

Don't know about those two but I was present at a public sight in event at our range. There was a strange sound like a blooper. We converged on the guy and told him not to fire any more until we checked his bore for a stuck bullet. I believe he put a 6.5 Swede cartridge into a 300 WSM chamber. It fired and sounded different. The 6.5 bullet rattled down the .30 bore.

I dont think a 6.5swede will chamber in a 300wsm. Its too long

 

[1K6BRA]

Just my opinion but I would not mess with that one that is stamped “made
in the 200th year of American liberty” I had one of those years ago and sold it regrettably. I always thought that was pretty cool. Wouldn’t it be great if every firearm that came from the manufacturer had the year roll marked on the barrel in whatever year of American liberty it was made instead of “read the instruction manual first before using could cause injury or death”? What a sad state the bigwigs(Government) must think we are all in.

 

[CJ6]

Am I missing something here ? But what are you trying to do exactly?, Just trying to see if a 6.5 Creed will fit your bolt face ? The whole chambering thing is OUT THE WINDOW. The Swift is semi-rimmed and the bolt face is .470-.473 so the bolt face will take a 6.5 Creed..

 

[Tommie]

We are NOT talking about rechambering a .220 Swift barrel to 6.5 Creed, right?

 

[47WillysGuy]

Am I missing something here ? But what are you trying to do exactly?, Just trying to see if a 6.5 Creed will fit your bolt face ? The whole chambering thing is OUT THE WINDOW. The Swift is semi-rimmed and the bolt face is .470-.473 so the bolt face will take a 6.5 Creed..

You are correct. Just tried it. 6.5 Creed fits perfect in the .220 Swift bolt.

 

[miningshawn]

We are NOT talking about rechambering a .220 Swift barrel to 6.5 Creed, right?

Ummmm. Look at the OP's stats. He might be thinking just that.

Mayhap a few of you chaps could point out the very large detractors to doing this. I can see why a new fella would rather shoot 6.5CM than rub a 220 Swift with a diaper due to lack of affordable ammunition.

I would far rather see the OP buy any one of the $400-$600 rifles available chambered in 6.5CM and work that 220 into a 300 yard tack driver.

 

[Pawnee Bill]

The action Yes, the barrel NO

 

[hogpatrol]

Is this a troll? SMH.

 

[Tommie]

Is this a troll? SMH.

Kinda starting to look that way

 

[windsaloft]

Seemed like a legitimate question to me. Assume you have an elderly relative with a sizable piece of property who still likes to shoot and who, like that Hickok45 YouTube character, tends to spread copious miscellaneous ammunition around on an outdoor work table. Then assume you're there with your new 6.5CM and she's there firing a 220 Swift. If you had to walk off and 'tend to business' it would be nice to know whether a 6.5 accidentally could be chambered into a 220 and fired. If so then you wouldn't plan on bringing 220s and 6.5s to the same shooting session. Now I don't have 6.5CM cases, bullets, or dies on tap yet (maybe good inventory will be available in the next decade) so was curious whether anyone had experimented with inserting a blank 6.5CM into a 220 swift chambered rifle.

1K6BRA: Wouldn’t it be great if every firearm that came from the manufacturer had the year roll marked on the barrel in whatever year of American liberty it was made instead of “read the instruction manual first before using could cause injury or death”?​

Yeah, guess it would be sort of 'sacrilegious' to swap out that barrel for one with a 1:12 twist. Still waiting for the micromanagers out in California to require a new barrel stamp like 'WARNING: Bullets contain lead. The discharge of firearms causes permanent hearing damage, heart disease, and may complicate pregnancy'