What 6mm chambering to reliably hit 3150-3200fps w/ 110+ class bullets?

[Bulldog Firearms]

What are you guys opinions on current 6mm chamberings that will reliably hit most match speed limits with good accuracy with 110-115 bullets and not using a powder like RL26 and no 30"+ barrels.

Would ideally like to be able to keep barrel at 26" or less.

Barrel life isn't a concern.

 

[RampedRaptor]

Anything with a mag bolt face

 

[Dai Bando]

.243AI will do it with a bunch of powders.

 

[z7.jled]

https://www.longriflesinc.com/blogs/news/the-ins-outs-of-the-6mm-competition-match

I read this a while back, spoke to Chad about it briefly 2 years ago, I have never tried the 6mm comp match, but this might be an option for you (it’s a 243 wildcat)

 

[Redleg06]

I was able to get 3200 in the .243AI with IMR 7977 and a 26" barrel

 

[gamewarden]

6mm SLR should do it.

 

[smoooth1]

6mm-284

 

[Quiggs]

6SIP

 

[mcfred]

.243 WSSM too.

 

[Hondo1]

My 6mm Creedmoor is doing it with RL26. 3170fps @ 45.0 with the 110smk

 

[supercorndogs]

My 26" 243AI shot great with 47.7g of 7977 with the nosler 105 CC. 3130fps.

 

[MakeSawdust]

I run 115 DTAC in a 26" Criterion chambered in .243 AI. I got 3050 fps with 49.1 grains of H1000. You can get more out of it, but that load was very consistent for 2000 rounds. I'm at 2400 rounds on that barrel now and it has slowed down about 90 fps, but the barrel still shoots half moa at 100. I haven't had a chance to check group size at distance, but if it has opened up I have another barrel to screw on. I have considered buying a more reliable action and switching to something based on 6 BR, but this feeds in my cheap Savage action and has been very consistent. I have not had to retune the load at all to maintain accuracy throughout the life of the barrel.

 

[redneckbmxer24]

A straight 243 26” barrel will do it without issue with H4350, H4831, and H1000. With 115 DTAC and H4831 I saw 3300fps before getting pressure signs.

 

[308pirate]

6 mm Competition Match

 

[jakelly]

Comp match with 7828ssc, magnum, 4831sc, and, by my guess, a dozen others will go above that.

 

[Bulldog Firearms]

6SLR

What's your objection to rl26? Its accurate and temp stable

I've heard that you need a winter and a summer load but it you're experience says otherwise, I'd definitely give it a shot.

 

[Dai Bando]

You heard wrong.

I see a little over a half fps per degree in a .243AI with 105's.

 

[Bulldog Firearms]

After I'm done with this RL16 that has plagued me with carbon rings, I'm going to give it a shot in my 6CM, feel like I should be able to get pretty close with 115's and RL26 to speed limit.

 

[308220]

Had a 243AI. Shot 105 amax at 3185fps with H4831. 26" barrel. Was on the upper end of max load. Dumped that cartridge though. The fireforming was too much bullshit.

Straight 243 win is probably your next best bet in a short action.