Pressure signs? I'm new to reloading

[wooltie]

Would appreciate anyone's input as to whether this primer is showing signs of excessive pressure.

[h20hunter]

Heck of a primer strike but I don't see anything. Load info?

[wooltie]

55.5g IMR4350
180g Accubond
2,726 ftps

I've have shot factory ammunition where the primers looks just like this -- slight little crater edge, flat primer, but still some curse near the edge.

[Timberstalker]

Primer is still intact - you're good to go!

Just kidding.  It doesn't look bad. 

[BULLBLASTER]

Post a picture of an unfired primer next to it.

[hunter399]

Here's what I came up with from hodgdon powders website,
I don't think your at max,or at 2726 ftps ,I use this for a lot of reloading cause I refuse to buy reloading manuals.It didn't have accubonds as bullet option ,but had 180 sp,anyway I will hit you with a pic and link to website for future .

http://www.hodgdonreloading.com

[jasnt]

Some primers are softer than others. I see no ejector marks. Still just fine imo. If you keep going just do so slowly. 1%increments. When you see a shiny spot or bolt lift gets stiff stop and back off a bit.

[Curly]

Primer looks good.  No flattening.

24" barrel?  I'd say you are approaching max.  Probably can't go much if any more powder.

BTW - I ran that load thru Quickload and it came up with 2,748 fps (from 24" barrel) at a pressure of 59,380 psi.

Without knowing the exact H20 capacity of your case and OAL, it is more of a guess, but I thru in the default H20 capacity and standard OAL of 3.34"

[hunter399]

Primer looks good.  No flattening.

24" barrel?  I'd say you are approaching max.  Probably can't go much if any more powder.

I do agree with curly

[wooltie]

Forgot to add the details..

1:10 twist, 24" benchmark, shooting a model 70.
WLR primers
.020" from the lands
The COAL is longer than standard because the ABs are like spears...longer bullets, but still fit in my mag.

Nosler claims 56.5g is max load with IMR4350 (using Nosler cases); I saw IMR's website claims the same max side w/Winchester cases.

I figured I was getting close and was going to try a couple more loads above 55.5g.  I think 2,750 ftps is the standard velocity for 30-06/180g.

I'm not really chasing velocity but would like to get the fastest 'sweet spot'.

I have fired brass from Hornady factory ammo that is a light slow load which displays the same characteristics--flattened primer and slight edge around the firing pin mark.

[hunter399]

Ya I'm kinda new to reloading also so I'm no expert ,but have been using a lot of data from powder sites .so may be wrong on anything so that doesn't help.Goodluck,but that primer looks fine to me ,happy reloading.

[bobcat]

Primers really aren’t a reliable indicator of too much pressure. I'd say you're fine just based on your velocity and that your powder charge isn't over book max. The books are conservative with 30/06 data anyway, so you should be able to go right up to the max charge shown in your book without any issues.

[Cougartail]

When your primer is stuck to the bolt, I back off a bit.. lol I always load moderate loads in rifles as they seem to be more accurate?

[wooltie]

When your primer is stuck to the bolt, I back off a bit.. lol I always load moderate loads in rifles as they seem to be more accurate?

I've heard many people say the mid range tends to be more consistent as well.

I shot a ladder in the 54.0-55.0 range which produced a spread of 18 ftps.  Velocities were 2650, 2650, 2648, 2646, 2660, 2668.  I bet that spread could drop somewhere in this range.

[Calvin Rayborn]

Resolution not the best but does definitely look a bit cratered to me

[Matth]

I would love one that looked like that, i have about the same primer issues, but i have extractor marks on mine also. I think yours look fine.

[crabcreekhunter]

Back off before this point.. Slight over pressure. Lol

[Biggerhammer]

While developing wildcat chamberings on the AR15 platform. This is a indication of excessive pressure. Part of the wildcat game. Anyone who worships quick load should drop a little more $$$ in that plate on the seventh day.😊 It's just a guide line. You have to pay to play, no matter the hobby/sport/addiction. Don't forget to buckle up, it's a great ride!👍





Subtle pressure sign while working up loads for a .458-.375 Ultra Mag.

[mountainman]

Primer looks good.  No flattening.

24" barrel?  I'd say you are approaching max.  Probably can't go much if any more powder.

BTW - I ran that load thru Quickload and it came up with 2,748 fps (from 24" barrel) at a pressure of 59,380 psi.

Without knowing the exact H20 capacity of your case and OAL, it is more of a guess, but I thru in the default H20 capacity and standard OAL of 3.34"

Agree. Good starting point. Learn to watch for real pressure signs (bolt lift, flattened primers, ejector polishing etc..) . primers cratering is not always a sign of over pressure. Move up slowly, watch for pressure signs 👍and accuracy curves. Doing so, you will never be able to post a pic of a broken gun or worse yet!

[crabcreekhunter]

I go by the book and watch closely for your pressure signs.  If any doubt work up slowly, and be cognitive of what you are doing.  Mistakes do happen and usually don't end well. 

[Magnum_Willys]

Primer looks fine.  I look for stiff bolt or brass swipe or flattened primer - ie square edges.   Quickliad is a good indicator too

[Ghost Hunter]

BH, I've got a couple of 340wby brass with that extra ring

[birddogdad]

While developing wildcat chamberings on the AR15 platform. This is a indication of excessive pressure. Part of the wildcat game. Anyone who worships quick load should drop a little more $$$ in that plate on the seventh day.😊 It's just a guide line. You have to pay to play, no matter the hobby/sport/addiction. Don't forget to buckle up, it's a great ride!👍





Subtle pressure sign while working up loads for a .458-.375 Ultra Mag.

hey Hammer, those the CE raptor brass bullets? how do you like? with or without tips?

[birddogdad]

Would appreciate anyone's input as to whether this primer is showing signs of excessive pressure.

http://www.hodgdonreloading.com/data/rifle

you are well within the max recommended charge here.. make sure you are seated within limits too and no worries...

[Biggerhammer]

While developing wildcat chamberings on the AR15 platform. This is a indication of excessive pressure. Part of the wildcat game. Anyone who worships quick load should drop a little more $$$ in that plate on the seventh day.😊 It's just a guide line. You have to pay to play, no matter the hobby/sport/addiction. Don't forget to buckle up, it's a great ride!👍





Subtle pressure sign while working up loads for a .458-.375 Ultra Mag.

hey Hammer, those the CE raptor brass bullets? how do you like? with or without tips?

Yes. CEB 370gr Raptor Non-Con tipped. BC doesn't improve much with the tip, as if it really matters with a .458 diameter bullet. The tips helped a bunch with feeding from the box Mag due to their huge hollow point. Super accurate! Yorke got me interested in the "Hammer Bullets" I'm shooting them in .375, 7mm & .224. They are working on .458's. I'm looking forward to shooting some.

[wooltie]

Here are a few more examples.  The hornady case is factory; the winchesters are handloads.  Even at 1-2 grains less, most of the primers out of this gun are somewhat 'flat'.  Could also be the primer seating too, maybe.  Bolt lift is not stiff at all.