25 PRC project and load data

[Alex Wheeler]

What would one gain in performance from a 25 PRC vs 25 x 47?

Speed / energy…yes there is a diff….., but is it enough difference?


Less hold? Less drop?

Quite a bit of velocity.

 

[B23]

I'd imagine barrel life would probably be a fair bit longer with the 25x47 VS 25 PRC but giving up the better part of 300 fps between the two could be tough to take.

 

[newbieshooter]

Great job on your first try at bedding GlennK, that sure is a great shooting hunting rifle. I can only imagine how well a 25 caliber LRB rifle will do if Alex has his way with it.
Been thinking very hard about making a heavy 600 yard gun in 25x47L or something with just enough capacity to shoot the 133 at 2850fps. Nice thread Alex, thanks for sharing.

Thats the plan. I have a 1.450 barrel sitting here soon to be a 25x47.

Tinkered (off/on - mainly off) with a 25x47 LRB LG a few years ago when the BJ131s first came out. Recently tried the Berger 133s and I think I got it shooting just about as well as my 6BR @ 600 yards. Still need to fine tune the powder/seating/bushing.

 

[mikecockcroft]

I would be happy just to know how Glenn got his 25-284 to shoot. Mine is giving me fits

 

[Sightcast-Alan]

What kind of barrel life are you guys getting in running it up in 3,000+ speeds?

 

[Infrequent Shooter]

I would be happy just to know how Glenn got his 25-284 to shoot. Mine is giving me fits

I am close to building a 25 caliber rifle. What twist rate is your barrel? Have you tried 100 gr smk, Berger 115 or Nosler 115 ballistic tip? I am wary of the vld length/style bullets.

 

[SongdogHunter]

What would one gain in performance from a 25 PRC vs 25 x 47?

Speed / energy…yes there is a diff….., but is it enough difference?


Less hold? Less drop?

a couple hundred feet per second easily but at a 10 grain powder expense

 

[284winner]

Others have run rl26 and n565 with success as well. I planned on starting with these 3 powders but quickloads was off on the volume and ended up over pressure. Went home and water weighed a case and came out much closer. 7828 was showing promise so ran with it.

RL26 and 131 BJs is where I started with my 25-284. Accuracy is best around 3K but there's another accuracy node around 3198 with 55.0 grains of powder(.5"). It's a 24" barrel and I'm tickled to see this velocity and no pressure signs I can see. Bolt lift and brass looks great. I won't run those speeds but rather the 3000 fps 95% of the time. May look to them on my next pronghorn hunt and do some more load data. For most hunts, I like the 3K fps number with most bullets

 

[long40shot]

Funny, I just found this thread. But the other morning I was thinking to myself, I wonder if anyone has done a 25PRC? I really like my 257 Roberts Ackley.

 

[ExPiney]

Others have run rl26 and n565 with success as well. I planned on starting with these 3 powders but quickloads was off on the volume and ended up over pressure. Went home and water weighed a case and came out much closer. 7828 was showing promise so ran with it.

GlennK, what was the neck diameter of the loaded rounds?

 

[nakneker]

Funny, I just found this thread. But the other morning I was thinking to myself, I wonder if anyone has done a 25PRC? I really like my 257 Roberts Ackley.

I’m having a 25 improved built, should have it in a couple months. Not a complete build, rebarrel of a Kimber 84 that wasn’t getting used. mine won’t be throated for the heavies though, I plan on shooting accubonds 110 and BIB110s. Should be fun.

 

[GlennK]

GlennK, what was the neck diameter of the loaded rounds?

0.287

 

[mullmann]

I am loving my 25prc. I have about 140-150 rounds down the barrel now. Manzella precisions reamer is working well. I had the barrel set back because the original reamer by another company was not doing it for me. I am shooting in the .4’s every time I go out and shoot at 100 yards. Have shot steel out to 300 yards so far.

ADG brass, br2, 58 gr N565, Berger 135. Running on a long action. I am 2.380 CBTO -.020 OTL. Coal is around 3.060 I believe.

 

[mtnfish6prc]

Is anyone running this in a short action? It's what I had so I'll give it a try. Hopefully it works.

 

[Ranger188]

I am loving my 25prc. I have about 140-150 rounds down the barrel now. Manzella precisions reamer is working well. I had the barrel set back because the original reamer by another company was not doing it for me. I am shooting in the .4’s every time I go out and shoot at 100 yards. Have shot steel out to 300 yards so far.

ADG brass, br2, 58 gr N565, Berger 135. Running on a long action. I am 2.380 CBTO -.020 OTL. Coal is around 3.060 I believe.

What kind of speeds are you getting with the N565 and 135g ?

 

[mullmann]

What kind of speeds are you getting with the N565 and 135g ?

I will be re checking speed this weekend with N565 and also testing H1000. I believe I was at 2930FPS at 47 degrees a couple weekends ago. 21 5/8” barrel. I also want to check it when it gets in the 80’s and 90’s.

 

[mullmann]

Verified velocities using a Garmin.
57 grains of H1000 avg 2970
57.5 grains of N565 avg 2940

 

[Alex Wheeler]

N570 looks good in this cartridge as well. 3250 out of a 24" barrel. This was 600yds.

 

[L.Sherm]

N570 looks good in this cartridge as well. 3250 out of a 24" barrel. This was 600yds.View attachment 1622165

Is that with the Berger 133 Alex?

 

[Alex Wheeler]

Yes