6.5 PRC load data

Nitrosteel

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Is the general consensus that most everyone is happy with the 6.5 PRC? In my 26” 6.5x47 - my load is giving me 2780 and I’ve not tried to push them any harder - though I’ve got no pressure signs at all.

Just wondering how much of an improvement this really is over a 6.5 Creedmoor - considering the overall expense of getting another bolt, dies, etc. I believe the Creedmoor should easily be another 50 faster than my Lapua. Doesn’t seem like much difference to me for many. Again, is it worth it?
 

NVScout

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Is the general consensus that most everyone is happy with the 6.5 PRC? In my 26” 6.5x47 - my load is giving me 2780 and I’ve not tried to push them any harder - though I’ve got no pressure signs at all.

Just wondering how much of an improvement this really is over a 6.5 Creedmoor - considering the overall expense of getting another bolt, dies, etc. I believe the Creedmoor should easily be another 50 faster than my Lapua. Doesn’t seem like much difference to me for many. Again, is it worth it?
I’m running 140’s at 3000 out of a 24” tube without pushing it and with H-1000 for the stability.... if 200 FPS faster is what your looking for then it’s worth it ! You can hot rod it with RL-26 and spread that gap even more, especially with a 26” barrel!!
 

acourvil

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My 26” 260 rem shoots 140 ELDs at 2850 with H4350. My 26” PRC shoots 147 ELDs at 3000 with H1000. Whether it’s worth it depends on what you are trying to accomplish; the extra power/speed also means there are some trade offs in recoil, barrel life, component cost, etc.
 

Rangerchad

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I did a load test on my 6.5 prc with a 24" 1:8 twist proof research barrel carbon fiber, bolly stock with a LRI break. This is built from a tikka t3 300wsm and still has the stock trigger. LRI did all the gunsmith work

I reloaded a barnes 127 lrx in hornady brass CCI BR2 primer and H1000 and got 3250,3224,3256 no pressure signs.

I reloaded a hornady 147 eld in hornady brass, federal primer, H1000 and got
3143,3153,3179 no pressure signs.
 
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DDRH65CM

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I did a load test on my 6.5 prc with a 24" 1:8 twist proof research barrel carbon fiber, bolly stock with a LRI break. This is built from a tikka t3 300wsm and still has the stock trigger. LRI did all the gunsmith work

I reloaded a barnes 127 lrx in hornady brass CCI BR2 primer and H1000 and got 3250,3224,3256 no pressure signs.

I reloaded a hornady 147 eld in hornady brass, federal primer, H1000 and got
3143,3153,3179 no pressure signs.
What powder node for the 127 LRX and 147 ELDM? Brass type? Thanks!
 

Tucus0311

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In my 24” Havak with RL-26, ADG brass, CCI 250 and a 147 ELD-M I did a quick Chrono ladder/pressure test and found a .6 grain wide node from 54.8 to 55.4 (54.8, 55.1, 55.4) that had a velocity spread of 7 fps at 2930, 2937, and 2934 fps. I ran up to 57.2 grains and noticed a light ejector mark (3042 fps) so I stopped. None of the upper charges produced a flat spot. Is this node at 2935 fps as good as it gets in a 24” barrel? Has 8133, H1000, or 4831 SC created any higher velocity than RL-26?
Do you know how far off the lands the factory 143 or 147s are in your Havak? What is the col you're using? I shoot a Havak as well but mainly for hunting and am trying to work up a load with the 143s. I'm using rl26 w/ 56.1 grns and running around 2910. And 2.097 col.
 

264win

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For anyone interested in running the Berger 156,
I have tested them in 2 rifles, both 24” 8 twist barrels.
Hornady brass, fed primers and H1000.

Nearly all the loads I tried were sub moa, with many sub half moa.
Bullet seems easy to tune.
Both rifles shoot well with around 30thou jump and 57.5-58g H1000. ( I saw slight pressure around 59g )
Velocity is 2930 and 2945
Round count is sill under 100 on both rifles so the speed may pick up a bit more.
I believe N565 and RL 26 will offer more speed, but I am going bear hunting tomorrow and wanted to use a powder I am familiar with.
In testing to 1300 yds the Berger claimed bc has been spot on for me.
 
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morganlamprecht

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Hornady brass
127 lrx h1000 59.3
147 eld h1000 59.7
dang i must have a jacked lot of h1000 or a slow af proof lol

mine is a 22" 1:8 and 59-60 grains of h1000 under a 127 and 130 hybrid is only giving me 2950-3000 fps
 
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jwknutson17

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For anyone interested in running the Berger 156,
I have tested them in 2 rifles, both 24” 8 twist barrels.
Hornady brass, fed primers and H1000.

Nearly all the loads I tried were sub moa, with many sub half moa.
Bullet seems easy to tune.
Both rifles shoot well with around 30thou jump and 57.5-58g H1000. ( I saw slight pressure around 59g )
Velocity is 2930 and 2945
Round count is sill under 100 on both rifles so the speed may pick up a bit more.
I believe N565 and RL 26 will offer more speed, but I am going bear hunting tomorrow and wanted to use a powder I am familiar with.
In testing to 1300 yds the Berger claimed bc has been spot on for me.
Awesome. I'm glad to hear you are getting over 2900 with the 24" and H1k. I have a 22 inch 7.5 twist coming and using RL26 and my goal was 2900+. Looks like I should get there.

Good luck on your hunt!
 

jwknutson17

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For anyone interested in running the Berger 156,
I have tested them in 2 rifles, both 24” 8 twist barrels.
Hornady brass, fed primers and H1000.

Nearly all the loads I tried were sub moa, with many sub half moa.
Bullet seems easy to tune.
Both rifles shoot well with around 30thou jump and 57.5-58g H1000. ( I saw slight pressure around 59g )
Velocity is 2930 and 2945
Round count is sill under 100 on both rifles so the speed may pick up a bit more.
I believe N565 and RL 26 will offer more speed, but I am going bear hunting tomorrow and wanted to use a powder I am familiar with.
In testing to 1300 yds the Berger claimed bc has been spot on for me.
Also what is your reamer/freebore and COAL at the 30thou off lands?
 

jwknutson17

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Both are factory Fierce rifles with 188 freebore.
Coal is 3.55 but there was a good node @ 3.750 as well
Thanks. Are you meaning 3.055 coal and 3.075 ? No experience with that rifle so is it on a LA or SA. If SA do those rounds feed from a magazine?
 
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264win

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Thanks. Are you meaning 3.055 coal and 3.075 ? No experience with that rifle so is it on a LA or SA. If SA do those rounds feed from a magazine?
To clarify, all my numbers were measured using a Hornady bullet comparator w/calipers. ( not coal )
The rifles I tested are on a long action.


For coal,
I believe factory PRC 147s are loaded to 2.950 and my load with Berger 156 is 3.050

No idea if they would fit or feed in a short mag
 
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Werk125

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Finished a bit of testing with the 156 EOLs. Using the hornady gauge, the max COAL was 3.074 (see picture attached) for the .188 FB. FWIW the bullets I measured were +- 6 thous in terms of OAL, so need to factor that into the measurement.

Best accuracy node was ~10-15 thous off. Running a 16.5” Proof CF barrel, 1:7 that was pushing them at 2750 FPS with H1000 and fed 210M primers... This was a hot load but anything under had an ES of 40+, whereas with this one the ES was holding at 15-20 FPS. Started losing primer pockets around load #6-8.

Regarding accuracy - I’m not totally satisfied, mostly because I was seeing flyers show up on a consistent basis. It would lay down two groups under 3/8”, and then the next would open up to an inch plus with a flyer. Could be related to the CF barrel heating up, but couldn’t really pin point the issue (checked action screw and scope ring torque, barrel clearance, switched to the VLD seating redding seating stem, etc.). Shot 200 rounds at various seating depths and charges. Lesson learned for me is that a “medium” action (e.g. defiance XM) is the way to go due to COAL restrictions on a normal short action with detachable mag. Due to the COAL restrictions and accuracy issues, I’m having a GAP 4s barrel spun up to see how these EOLs work... Will post results in the GAP 4s thread.
 

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jwknutson17

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Finished a bit of testing with the 156 EOLs. Using the hornady gauge, the max COAL was 3.074 (see picture attached) for the .188 FB. FWIW the bullets I measured were +- 6 thous in terms of OAL, so need to factor that into the measurement.

Best accuracy node was ~10-15 thous off. Running a 16.5” Proof CF barrel, 1:7 that was pushing them at 2750 FPS with H1000 and fed 210M primers... This was a hot load but anything under had an ES of 40+, whereas with this one the ES was holding at 15-20 FPS. Started losing primer pockets around load #6-8.

Regarding accuracy - I’m not totally satisfied, mostly because I was seeing flyers show up on a consistent basis. It would lay down two groups under 3/8”, and then the next would open up to an inch plus with a flyer. Could be related to the CF barrel heating up, but couldn’t really pin point the issue (checked action screw and scope ring torque, barrel clearance, switched to the VLD seating redding seating stem, etc.). Shot 200 rounds at various seating depths and charges. Lesson learned for me is that a “medium” action (e.g. defiance XM) is the way to go due to COAL restrictions on a normal short action with detachable mag. Due to the COAL restrictions and accuracy issues, I’m having a GAP 4s barrel spun up to see how these EOLs work... Will post results in the GAP 4s thread.
Is there a reason your running a 16 inch barrel and then trying to squeeze velocity out of it with a slower powder like H1k? I would expect you have the same results with the 4s with that barrel length, bullet, and powder.

The proper fix is a longer barrel with these SAUM type cartridges.
 
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Werk125

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I like to run short barrels for hunting / suppressed applications - And also Just to do something a bit different.

My 16.5” Creedmoor is only able to push 140s at a max of 2450 FPS (accuracy node was at 2400). Pretty happy with an extra 300+ FPS.

Agree with your point though that the full potential for SAUM cartridges is best realized with longer barrels.
 

Rangerchad

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I have a 6.5 prc, 24" cf proof research barrel 1:8 twist built built off of a tikka t3 300wsm action and bolt.
At 59.7 hornady eld 147 h1000, federal primer, hornady brass 3179 fps .20 otl Top picture

At 59.3 barnes lrx 127 h1000, cci primer, hornady brass 3250 fps .20 otl bottom picture. I am working on this one tomorrow
 

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DEW0341

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Sad these longer bullets come out and we can’t mag feed them in a true short action. I will still test the 156 berger for fun I’ll just have to single feed them in
 

BCX

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Accurate WSM and Alpha WSM Type 4. I’m having good luck at 2.970 from a Surgeon 591 WSM. Not sure your setup?
 

BCX

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I have a 6.5 prc, 24" cf proof research barrel 1:8 twist built built off of a tikka t3 300wsm action and bolt.
At 59.7 hornady eld 147 h1000, federal primer, hornady brass 3179 fps .20 otl Top picture

At 59.3 barnes lrx 127 h1000, cci primer, hornady brass 3250 fps .20 otl bottom picture. I am working on this one tomorrow
Dam your 147 is close to my 147 w RL-26 from a 28 5r 1-7. Had issues w the last batch of 147.
 

jwknutson17

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Sad these longer bullets come out and we can’t mag feed them in a true short action. I will still test the 156 berger for fun I’ll just have to single feed them in
Yea a LA is ideally the way to go. I however am having TSCustoms spin up a barrel with a short .125 freebore right now so I can still mag feed the 156gr Berger and 153 A tips without having a crazy jump. At mag length it's not a crazy deep seating.. we'll see what pressure and velocity I get with these with RL26.
 

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DEW0341

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Yea a LA is ideally the way to go. I however am having TSCustoms spin up a barrel with a short .125 freebore right now so I can still mag feed the 156gr Berger and 153 A tips without having a crazy jump. At mag length it's not a crazy deep seating.. we'll see what pressure and velocity I get with these with RL26.
This I want to pay attention to! I was having the same thoughts of getting my barrel with a .130 freebore just to see what I could get away with when seating to fit in the mag with the 153 and 156 grainers just for fun. I won’t be using any factory ammo at all for the gun. All hand loads.
 

Cascade Hemi

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I have a .130 FB cut by Bugholes. 153gr A-Tip measures 2.968 (2.303C) to the lands and 150 SMK measures 3.013 (2.295C) to the lands. If you're using a finishing pilot reamer you might consider .115 or .120 FB. I'm sure both of these bullets are going to shoot but as the throat burns out you won't have a lot of room to grow, if any. I don't see much difference between .125 and .130, if you're going with a shorter throat you may as well give yourself some room.
 
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jwknutson17

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I have a .130 FB cut by Bugholes. 153gr A-Tip measures 2.968 (2.303C) to the lands and 150 SMK measures 3.013 (2.295C) to the lands. If you're using a finishing pilot reamer you might consider .115 or .120 FB. I'm sure both of these bullets are going to shoot but as the throat burns out you won't have a lot of room to grow, if any. I don't see much difference between .125 and .130, if you're going with a shorter throat you may as well give yourself some room.
That was the shortest one he had without custom ordering one. I believe he also has a .150 and the .188. So the .125 was the best choice. If I can't get the 156s to shoot I'll be going back to the 140s.

Thank you for your measurements.