Author Topic: Acme 124  (Read 667 times)

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Offline DJK11

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Acme 124
« on: May 12, 2018, 01:33:05 PM »
So I tested my first batch of Acme 124g RN nlg coated yesterday with great results.  Shot them from the 75B and Kahr pm9.  With the 75b at 25yd. I kept most on an 8x11 target. Thought that was ok for my old shaking hands.  Used 3.8 titegroup at 1.070 COL.

Offline K31Scout

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Re: Acme 124
« Reply #1 on: May 12, 2018, 06:38:14 PM »
I like Acme 147gr with WSF and I can seat them at 1.120" in my P-07.  I get good groups with the 122gr flat point too.  Love the Acme boxes. I have some Gallant gold 135's coming and they look promising for the CZ's. 
CZ 75 SP-01
CZ P-07

Offline Earl Keese

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Re: Acme 124
« Reply #2 on: May 12, 2018, 08:21:36 PM »
So I tested my first batch of Acme 124g RN nlg coated yesterday with great results.  Shot them from the 75B and Kahr pm9.  With the 75b at 25yd. I kept most on an 8x11 target. Thought that was ok for my old shaking hands.  Used 3.8 titegroup at 1.070 COL.
How long ago did you buy them? I'm loading ACME's newer profile 124rn right now and they will load much longer than the old profile. For example, in my P10 I had to load the old 124rn to 1.06 oal, the new ones plunk at 1.12.

Offline DJK11

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Re: Acme 124
« Reply #3 on: May 12, 2018, 09:34:07 PM »
They are the new style.  Won't plunk any longer, maybe another .010.  Berrys 124 HBRN will plunk at 1.145.  Berrys 124 Target HP plunks at 1.065.  Apparently I have one with a short chamber.

Offline IDescribe

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Re: Acme 124
« Reply #4 on: May 12, 2018, 10:27:40 PM »
Won't plunk any longer, maybe another .010.  Berrys 124 HBRN will plunk at 1.145. 
I suspect there is something going wrong with your testing.  My ShadowLine is particularly short-throated, even for a CZ, and those Berry's 124 HBRN will load out over 1.200 in mine, something like 1.220.  From one pistol to the next, it should be a rarity to seem much more variation than .3, and not much more than that on the rare occasion you do.  You'd be looking at .07/.08 vs my short-throated one, and I suspect you have something else going on in your process to determine max OAL that's producing a max OAL much shorter than your real max.

Offline 1SOW

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Re: Acme 124
« Reply #5 on: May 13, 2018, 12:52:14 AM »
I get the same BRY 124 HBRN plunk results with both my CZ 75s:  longer than the mag will hold ;D.

Somethings not right with the DJK11 plunk methodology or your chamber is abnormally short-sheeted. :)

Offline DJK11

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Re: Acme 124
« Reply #6 on: May 13, 2018, 08:12:11 AM »
I assume a short chamber.  I have three Kahr 45's and one had a short chamber compaired to the others.  Local GS / machinist remedied the "shortness".

Offline IDescribe

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Re: Acme 124
« Reply #7 on: May 13, 2018, 09:04:53 AM »
I assume a short chamber. 

DJK11, we deal with helping people with shallow chambers here all the time, and we see "the range" of variation CZs come with, and your determined max OAL is super far out of that range.  We also see people come up with faulty numbers from their method to determine max OAL.  It is exceedingly difficult to imagine a CZ barrel so short-throated that it won't take a Berry's 124gr HBRN out to 1.12.  But it's very easy for people to make mistakes with determining max OAL. 

Food for thought.  ;)

Offline DJK11

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Re: Acme 124
« Reply #8 on: May 13, 2018, 11:57:33 AM »
Thanks for the insite.  Be it me or the chamber I'm ok with the results from the first batch of Acme.  I'll tweek it some.  Now to go to work on some 45 acp.

Offline Wobbly

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Re: Acme 124
« Reply #9 on: May 14, 2018, 11:40:03 AM »
Thanks for the insight.  Be it me or the chamber I'm ok with the results from the first batch of Acme.  I'll tweak it some.  Now to go to work on some 45 acp.

What ID is telling you correctly. But you are also correct !!

Even though the 124gr HBRN will push to ~1.200"... it is BEST LOADED to a much shorter OAL, like 1.140" or so, just as you are doing.

So don't disregard his advice. We are NOT saying that these 2 statements are mutually exclusive; we are NOT saying that ONE of you is wrong. Indeed, both of you are correct. He is simply pointing out an error in your process that may come back to bite you when you go to load your next new-to-you bullet. In that sense, it's very good advice.


BTW... the Berry 124gr Target HP is Berry's least accurate bullet and has lots of feed issues in other pistols, like Kimbers. You'd do well to stay with the 124gr RNHB.

All the best.  ;)
In God we trust; On 'starting load' we rely.

Immature reloaders ask: What's wrong with this gun?
Mature reloaders ask: What did I do wrong ?

Offline DJK11

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Re: Acme 124
« Reply #10 on: May 14, 2018, 01:59:36 PM »
Once again thanks.  I tested the Berrys THP when they first hit the market and found them to be terribly inaccurate.  Spoke with a couple people at Berrys with my concerns.  I'm finishing up the stock on hand.  Loaded more of the HBRN than I can count with very good results.

Offline Zigzag

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Re: Acme 124
« Reply #11 on: May 18, 2018, 09:38:05 PM »
I just finished loading my second batch of acme 124's the first thousand was with tite group at 3.7. This batch I just finished I used Accu#2. These I split half at 3.1 the rest at 3.4. A OAL for my shadow2 after push and plunk testing 1.09 works really well and I really like these bullets an the coupon code for 10% off is nice also(54730) and the wooden boxes are cool. I just got a sample of gallant 135 grain and these are a tad longer than the acme' so I'm a little concerned about seating depth.

Offline IDescribe

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Re: Acme 124
« Reply #12 on: May 19, 2018, 05:21:25 PM »
Are you shooting these competitivrly?  Those seem light enough not to make PF floor.

Offline Billmanweh

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Re: Acme 124
« Reply #13 on: May 19, 2018, 10:36:06 PM »
The Acme 122 FP is more accurate than the RN in my CZs.

They also do well with the SNS 125 CN.

Offline IDescribe

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Re: Acme 124
« Reply #14 on: May 20, 2018, 05:53:38 AM »
The Acme 122 FP is more accurate than the RN in my CZs.

It may generally be, or not - - I don't know.

But I know my CZ pistols are responsive to tuning velocity in a way some of my other pistols don't seem to care. And I think sometimes we have a tendency to load to an arbitrary velocity, let's say to meet a preferred power factor, and we end up comparing two bullets at a particular velocity or particular power factor rather than two bullets at their optimum velocity or power factor.

I can tell you that my Shadowline seems to have an accuracy node with an average velocity between 1060 and 1080 with 124/125 grain bullets, regardless of type or profile.  That's a PF range of 132-135, so perfect for 9mm minor competitive shooting, but 147gr bullets are most accurate in the PF range of 135-137, and 135gr bullets up around 137/138 PF.

One of these days, I will pick up some of those ACME 122, but I will have no expectations on where those accuracy nodes may be.