280AI barrel life, if....

[Bob Wright]

Ok gunsmiths!
How many rounds can a 280AI be shot before the barrel starts it's demise?
Assume on a trued R700 action:
1 the barrel is not smokin hot, say 5 rounds and cool, max
2 the handload is capable of 500-600 yards accuracy
3 maintaining a max book load or less
4 shooting for target work (for me) and grandkid loads for deer. 130-168 grain anything
5 barrel is a Proof SS pencil barrel, 26", 8.4 twist, for packing into high country, plus a brake
6 rifle in build stage, but seeing loads with H4831, Re22, Re23, Re26 H1000 some shooting magnum primers, some on BR primers. Your choice here...
7 want repeatable results with reasonable loads on elk (rarely) and deer or smaller.
I know, "variables". But think along one load you like, what is the life expectancy if this barrel is taken care of, really well...

 

[adk hunter]

tagging in

 

[KyCarl]

I doubt you can get an exact number I mean who could say 1378 rounds to the shot?

 

[cohunt]

1378...

Sorry, just had to.

Its ballistics are close to 7rem mag, so numbers from a 7rem mag should get you close-- but there are so many variables

 

[lancetkenyon]

1-2200 accurate rounds is my guess.
I have a .280AI, run pretty hot with two different loads. Has about 550 rounds on it so far.
And yes, I know a guy who got exactly one round down his barrel before it was toast....he left a laser bore sighter in the barrel for that first shot....

 

[Bob Wright]

1-2200 accurate rounds is my guess.
I have a .280AI, run pretty hot with two different loads. Has about 550 rounds on it so far.
And yes, I know a guy who got exactly one round down his barrel before it was toast....he left a laser bore sighter in the barrel for that first shot....

My brother in law left his ramrod in a muzzleloader and hit the target (sideways). We still give him grief.

 

[BallisticsGuy]

I'd call 1300-ish rounds a safe bet that it'll be pretty done by my standards for competing but would still work as an elk rifle to much farther than I'd want to drag an elk back.

 

[Bob Wright]

I'd call 1300-ish rounds a safe bet that it'll be pretty done by my standards for competing but would still work as an elk rifle to much farther than I'd want to drag an elk back.

Since it's pedigree is the '06 case and 270 Win, 280 Rem, I was hopeful with case life that would similar, in say 75% life compared to its parent. So, around >2000
Maybe wishful on my part.

 

[cohunt]

Average case capacity's

284 shehane & 280= 68.5
7 saum= 72.5
280ai= 73.5
7ss=76
7wsm and rm=81- 83

Should put you in the neighborhood of a 7 saum

 

[Kimber7man]

280AI and 7 SAUM are basically two peas in a pod, identical.

 

[lancetkenyon]

280AI and 7 SAUM are basically two peas in a pod, identical.

Yeah....identical....

 

[Bob Wright]

Yeah....identical....

Im dying over here! Haha.....

 

[PApa Black]

Im dying over here! Haha.....

ROTF LMAO!!!!!

 

[JD284win]

My 280AI shot 57.5gr of IMR4831 with 140gr accubonds and barnes TTSX @ 3010fps. Was a great all around cartridge. Had no trouble punching both shoulders on elk at 600yards. My barrel died some place around 1000 to 1200 rounds. Recently rebarreled to a 284win with 177 hammers.