Question on seating depth Berry 9mm

[Highland Lofts]

I bought two boxes of Berry's 9mm 124 grain bullets.
124 grain Flat Point they measure .535
124 grain Round Nose they measure. 588.

The Hornady manual has the seating depth on their round nose and flat Point bullets thesame seating depth.

So do I go with that or what?

I sent a email to Berry's tech but haven't got a reply yet.

 

[Soonerpesek]

The Hornady manual has the seating depth on their round nose and flat Point bullets thesame seating depth.

I would venture to guess the charges are different, then….??
If it’s in the manual, you prolly won’t go wrong to start…

 

[Blue68f100]

Every gun is going to be different depending on chamber specs. Determine what you max OAL is then move back 0.020" as a starting point. Check for feeding in your gun and also check to see if you can eject a live round. If all's good start your load workup.

 

[N555]

Load them as long as you can and still have them fitting the magazine. Seat a bullet in the case, chamber it and see if the rifling pulls the bullet out.
Or when sizing brass size one case just enough to snugly hold the bullet, put the bullet in the case so it's sticking out way too much, chamber it and allow the rifling to push the bullet into the case. That will be your absolute max length for that bullet.
It's not that hard to figure out.
Stay keep the COAL as long as possible. Too short is whats dangerous.

I found rmr and berrys bullets to be very consistent, also as if they are using one set of bullet forming dies.

 

[film495]

if not 100% certain, start with very light loads and work your way up. certainly cross reference as much load data as you can get your hands on, but - starting a new load in any circumstance, always start low and work up.

 

[fxvr5]

Do the plunk test to determine the max OAL that will fit in your barrel.

https://www.shootingtimes.com/editorial/reloading-tips-the-plunk-test/99389

 

[LiveLife]

Berry's 9mm ... 124 grain Flat Point ... 124 grain Round Nose

I sent a email to Berry's tech but haven't got a reply yet.

These are listed on Berry's max OAL/COL list - https://www.thehighroad.org/index.p...7/&temp_hash=e2f8ddb6ba42a63cf0b2c9645958c061

• 9mm 124 gr RN - 1.160"
• 9mm 124 gr FP - 1.060"

But if you are loading for barrels with shorter leade, you may need to load them shorter based on the "plunk test" member @fxvr5 mentioned.

From Barrel vs Max/Working OAL reference thread (Berry's 124 gr RN passed most barrels out to 1.169") - https://www.thehighroad.org/index.p...col-for-reference.848462/page-2#post-12249361

• Taurus PT-809 - Berry's 124 gr HBFP: 1.040" - 1.030"
• M&P Shield 9mm EZ - Berry's 124 gr HBFN: 1.050"
  
• Canik TP9SFX - Berry's 124 gr HBFP: 1.070 - 1.060
  
• Taurus PT-111 G2 - Berry's 124 gr HBFP: 1.070" - 1.060"

And I usually load 9mm 124 gr RN bullets shorter to 1.130"-1.135" because accuracy improves (due to enhanced neck tension) compared to loading longer at 1.150"-1.160".

 

[Skgreen]

From Berry's website:

 

[Rule3]

I bought two boxes of Berry's 9mm 124 grain bullets.
124 grain Flat Point they measure .535
124 grain Round Nose they measure. 588.

The Hornady manual has the seating depth on their round nose and flat Point bullets thesame seating depth.

So do I go with that or what?

I sent a email to Berry's tech but haven't got a reply yet.

Hornady doen't list Berrys bullets, they use their bullets

124 gr Flat nose is 1.050
124gr round nose is 1.150

 

[lordpaxman]

You want to check them to see if they’re the Hollow Base (HB) or not. The Hodgdon online data has some data for these, and if they’re not HB, there’s data for similar weight bullets. Berrys is a plated bullet so you can use the higher end of cast or the start to mid range of jacketed.

 

[Highland Lofts]

One of them I have are hollow based will check out Hodgdon on that.
Thank you all for the responses.

 

[Skgreen]

Hollow base from Berry's website:

 

[rfwobbly]

I bought two boxes of Berry's 9mm 124 grain bullets.
124 grain Flat Point they measure .535
124 grain Round Nose they measure. 588.

The Hornady manual has the seating depth on their round nose and flat Point bullets the same seating depth.
So do I go with that or what?

No, you do not.
• Hornady is REPORTING the OAL they used during testing. They are not making a recommendation.
• You'll need to measure how that bullet interfaces with YOUR barrel and then make reasonable adjustments and plans based on your experience with the cartridge and pistol. Each bullet-to-barrel interplay is different/ unique/ individual.
• Understand that ALL auto pistol cartridges allow a RANGE of OAL to be used. There are PHYSICAL limits used by the shooting industry, and then typically further restricting those are the LOAD limits set by Your gun and Your load recipe.

The following cartoon shows/ explains this better....



► On the outside we have the SAAMI Physical limits for 9x19 Luger. Longer than ~1.169" won't fit inside the mag; shorter than 1.000" won't feed well.
► Typically, further restricting those are the additional limits of reality. You don't want to go shorter than the Reported OAL in the recipe, to prevent chamber pressure spikes. You do not want to go longer than what the barrel will accept, due to fears of creating a cartridge that has the physical ability to create an Out Of Battery accident. Every bullet is different; every barrel is different. No one here can advise you on this number... you have to measure it for yourself.

► ► Between those 4 Limits is a "zone" or range of OALs that is safe to use. This part is the Science of Reloading. Based on your past experience with your handgun, within that range is an OAL that will allow your handgun to feed well and deliver the desired accuracy. This part is the Art of Reloading. Welcome to Reloading !

Hope this helps.