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CZs and Bayou Bullets


poopshooter

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has anyone run the full line of 9mm offerings from Donnie thru test? I'm most interesting in knowing which bullet has the most friendly profile for the short CZ chamber. whatever load i settle on for uspsa I'm sure it will be with a fast powder and would like to keep it as long and safe as possible. the 147 flat points look like they start tapering way back, could be promising? wanted to start this here rather than the reloading section to make sure i get real CZ guy responses.

Edited by poopshooter
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I've had to keep the 135gr and 147gr Bayous loaded under 1.100" to not hit the rifling. Hope the info helps, I haven't tried the 124 or 160gr Bayous.

For what it's worth, I'm sending my barrel off for throat recut. Should be gone a week and set me back $30.

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I have run them all. I love shooting my shadow with the 147's. I even had Donnie size some 160's down for me and ran them for a while. They felt better than the 147's but only slightly so. I have 3k of the 147's so that is what I'm using.

what powder do you like with those 147s?

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I've had to keep the 135gr and 147gr Bayous loaded under 1.100" to not hit the rifling. Hope the info helps, I haven't tried the 124 or 160gr Bayous.

For what it's worth, I'm sending my barrel off for throat recut. Should be gone a week and set me back $30.

30 bucks and only gonea week sounds like a good deal to me, that should buy you a little extra room, not too much with the mags being so tight too. may i ask who is doing the work?

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I used a 9mm barrel reamer from brownells. It has blades for the chamber, and the throat. A couple turns, and was all set. Just be careful not to cut the chamber deeper.

Now I have a reamer (for more than $30 though) and if needed, I can make all my barrels accept the same bullet profile/length if something has a short throat or tight chamber.

I run 147gr bullets and Montana Gold 124jhp to 1.135 just fine now.

Solo1000 (3.6-3.8gr depending on lot#) for the Moly's, and titegroup for jacketed.

Edited by DWFAN
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I've had to keep the 135gr and 147gr Bayous loaded under 1.100" to not hit the rifling. Hope the info helps, I haven't tried the 124 or 160gr Bayous.

For what it's worth, I'm sending my barrel off for throat recut. Should be gone a week and set me back $30.

30 bucks and only gonea week sounds like a good deal to me, that should buy you a little extra room, not too much with the mags being so tight too. may i ask who is doing the work?

Matt Cheely, but I can't speak for him. You never know what a gunsmith's workload is like, so what might be a week for me might be longer for you.

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I have run them all. I love shooting my shadow with the 147's. I even had Donnie size some 160's down for me and ran them for a while. They felt better than the 147's but only slightly so. I have 3k of the 147's so that is what I'm using.

Pretty much all I use now is the 160gr in all 9mm I own. Sold my CZ but never had a problem with them in it.

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Matt did my CZ in 2 days and did a great job!!!

You can get a head space reamer from Manson for $40. I have one I used on my 9 major guns, my Shadow takes up to 1.145 without reaming, the Bayou 135gr which is my preferred bullet with 4.0gr of WST. I did find the 147gr flatter but more straight back recoil. I guess it is just preference. These 1.145 rounds also work in the wife's 75B and Compact, un-reamed. That N320 is good stuff, I use it with 124gr MTG CMJ's when I'm out of Bayou Bullets. I don't recommend WST for Jacketed 9 mm.

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IMG_0164-1.jpgIMG_0165-1.jpg

I am all set for some testing this weekend. I have the full array of bullets that im interested in (he has 115, 105 too)

The constants: I know i want to be .013 from the rifleing i have established this for the gun already and dont feel too safe tinkering with it.

I know all the loads will be Federal primers because thats the only one my gun lights 100% I know i want to be at 132 pf if a bullet looks like it needs to be pushed faster to stablize then its prolly not the bullet i should be using. Accuracy, recoil/feel and reliability, I will have some opinions soon.

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for anyone who’s interested some info from my testing, course all guns will be a bit different but this can at least give guys an idea roughly what to expect if they use a cz sp01 shadow.--

125gr touched rifling at 1.170, great profile for the cz chamber, mag will limit those loads not the head space. I set my oal to 1.145--

135gr touched at 1.132 (the least forgiving of all the bullets) i found my new dies are seating way more consistently than the lee's i used to use so..i felt ok using an oal of 1.125--

147gr touched at1.147 i set my oal to 1.135, my mags did not like this profile past that length--

160gr pleasant surprise to find it touched at 1.160 they fed well out of the mags so i was ok settling on 1.152 oal--

due to time constraints I did not test every powder I had, just 5 of them.

125gr loads

3.7 n320, 4 shots rested gave unspectacular grouping, my chosen charge proved off got 970 av for 121 pf, recoil was very light but I would expect it would still be a good handling load at 130 pf. Smoke was almost nonexistent.

4.3gr of w231 got me to 133pf of all the powders this one gave the most recoil and poorest feel. I was quickly able to figure out this would not be the powder I would settle on for my load.

3.9gr solo100, noticeably more smoke than the n320 but nothing like a reg lead bullet, this got me 128 pf with a nice feel, this load was very similar to my clays load

3.4gr clays gave decent accuracy, smoke and recoil pulse comparable to the solo, (n320 w/more smoke) this wrapped up my 125 testing

this bullet tip ended up being tied with the 135g for my least favorite of the bunch. I found much better accuracy and feel elsewhere...

135gr loads

3.5gr N320 gave 127pf, not a bad load but like all the other n320 smoke was MIA, second best accuracy to Titegroup for this bullet weight.

3.2gr titegroup 130pf, more smoke than all the other powders tested, very good accuracy, the recoil pulse on all the 135gr loads was similar did not detect enough variation to comment on

3.2gr clays, 129pf, this powder and the solo1000 seemed very similar to me in almost all the loads I tested only dif being that it seems you need a bit more solo than clays to do the same thing

147gr loads

this is the bullet I was the most optimistic about, FP expected to give better accuracy and the 147g has proven to have very little push and no snap in my heavy ass CZ.

3.2gr titegroup, 137 pf

3.5gr w231, 132 pf

3.4gr solo1000 128 pf

3.3gr n320 128 pf

the n320 and titegroup gave the best accuracy, and it was noticeably better than the lighter bullets. Again smoke on the n320 was not an issue and these loads were starting to feel real sweet in the recoil department. Fast powder/heavy bullet been no secret for awhile now right ;)

when dropping the slide on the 147 I could feel the ever so slight hesitation chambering that FP bullet. Worked every time but makes me wonder if a feed issue could occur when the gun is very dirty with my 11lb spring.

160gr loads

2.9gr solo100, 123 pf oops

3.3gr w231, 136 pf

3.0gr n320 131 pf

let me say here that the accuracy with the n320 under the 160gr bullet was phenomenal. Both other powders also shot this bullet to accuracy that was just better then the 147 and way better than the other 2 weights. The front sight barely seemed to clear the notch on the solo and n320 loads. Boy was I psyched to see that I could load this tip long, 160 is a beast and I was fearful of overpressure...that never came.

The performance of the N320 did distinguish its self from the others, enough for the cost?...for me yes, powders just not expensive period. Choosing n320 over a domestic powder adds 3% to the loaded ammo cost by my estimations.

My gun liked the 160s. There is no doubt in my mind that is the best choice for me. Although the 147s would also make a fine load.

I have settled on the 160gr Bayou over 3.0g of VV n320 for 817 fps 131pf

this load will go into mass production over the winter.

I tested on Saturday and then went home and loaded 200 more of that load. Sunday I shot them in an IDPA classifier got a 93.87 to make Master class :) next lets see if they can take me into “A” production.

Edited by poopshooter
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Thanks for the work and write-up. I'm wondering why you're able to load the 147gr (FP) longer than 135gr (RN). Given the weight and ogive difference, I'd have thought the OAL would be reversed. Of course, I'm still new with reloading.

Thanks again.

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