6.5 PRC SI

[haisardao]

Looking for some real experience with 6.5 PRC SI, have a few components I might put to use in 2026, cartridge looks like a great one, a plus is Lapua brass is available. My plan would be a 20 inch barrel for hunting, to be shot suppressed. How much more are you gaining in FPS, with the other added benefits of improved cartridges? Likely run 140s, maybe 156s. Thanks

 

[waspocrew]

Calling @lancetkenyon ….

 

[Nevrsummr]

Have one. 20" 1:8 Suppressed. Getting 2980 with a full case of rl23. No pressure signs. Could go faster with a faster powder but shoots great. Mild recoil. And I like the case full, so why change it?

Running low on rl23, so when I'm out I may try 4831sc, h1000, or a Vv powder. Maybe 165.

It took 4 deer and an elk this year. All 1 shot kills no tracking required. To say I'm happy would be an understatement

Also worth noting, it shot factory prc brass and 140 bergers 1/2 moa. So fireforming doesn't need to be "a waste" you can hunt with fireforming loads no problem.

Lance's post were a big help for load dev and he was very helpful and reassuring in going down this path. Glad I did.

 

[haisardao]

Have one. 20" 1:8 Suppressed. Getting 2980 with a full case of rl23. No pressure signs. Could go faster with a faster powder but shoots great. Mild recoil. And I like the case full, so why change it?

Running low on rl23, so when I'm out I may try 4831sc, h1000, or a Vv powder. Maybe 165.

It took 4 deer and an elk this year. All 1 shot kills no tracking required. To say I'm happy would be an understatement

Also worth noting, it shot factory prc brass and 140 bergers 1/2 moa. So fireforming doesn't need to be "a waste" you can hunt with fireforming loads no problem.

Lance's post were a big help for load dev and he was very helpful and reassuring in going down this path. Glad I did.

Thats awesome, this is what I'm looking for!

 

[bsnyder]

Also have a 20 inch. Shoot these groups this morning ignore the 2 in the middle. They were 156 Berger's. Top group is h1000 and 153 Berger's at 3015 and bottom group was 565 at 2950. I've tested n560, 565,570, and h1000. I ran 135 atips last year at 3150. This year went to 156's and they've killed well.

 

[Azhunter10]

I also have one, 20" barrel running 60.5g N565 with a 156 Berger at 2960fps and no pressure signs

 

[haisardao]

Is it fair to say to expect 100-125 fps over a straight 6.5 PRC?

 

[bsnyder]

In my 2 yes. My father in-laws we built for him runs 144 Berger's at 3220 in a 26 inch barrel

 

[Phil Rizzo]

Pretty sure Lance saw 140-150

 

[Huntaddict]

IMO this is a copy cat to the parent cartridge of the 6.5 PRC which is the 6.5 GAP 4S - with nearly the exact same velocity and capacity improvements of that 11 year old cartridge. Nothing new here

 

[haisardao]

IMO this is a copy cat to the parent cartridge of the 6.5 PRC which is the 6.5 GAP 4S - with nearly the exact same velocity and capacity improvements of that 11 year old cartridge. Nothing new here

That's ok, nothing new in most cartridges, I still enjoy playing with different chamberings.
I'm trying to get info to plan my build and specs, trying to keep the thread focused.
Thanks

 

[Huntaddict]

That's ok, nothing new in most cartridges, I still enjoy playing with different chamberings.
I'm trying to get info to plan my build and specs, trying to keep the thread focused.
Thanks

Roger that, enjoy!

 

[huntinfool18]

What's your guys COAL with the 156s?

 

[Brijake]

Is this also known as 6.5 Mega?