.45ACP extreme accuracy for CZ-97B

[Wobbly]

? Since the shoulder height is the "thing" with SWC, I greatly prefer a seating die that seats by pushing directly on the shoulder. The Redding dies I've owned came that way. Hornady has the drop-out anvil, and it's easy to make a replacement or modify an existing anvil to accomplish this.

? As with 9mm, the Lee Taper Crimp Die is greatly preferred over the Lee Factory Crimp Die.

 

[Boris_LA]

? Since the shoulder height is the "thing" with SWC, I greatly prefer a seating die that seats by pushing directly on the shoulder. The Redding dies I've owned came that way. Hornady has the drop-out anvil, and it's easy to make a replacement or modify an existing anvil to accomplish this.

Thats the plan.

? As with 9mm, the Lee Taper Crimp Die is greatly preferred over the Lee Factory Crimp Die.

 

Hornady set i am looking for has taper crimp in the seating die, controled independently. I have it on 9mm set and like it, despite some extra setup step.
I will try it first.

Thanks Wobbly!

[noylj]

my 9mm loads with Hornady 125 HAP and TG group 1.75-2" at 50 yards with wrists rested on the counter

Man, I would love to see that. I hear about such things, but I have never seen a 9x19 that could consistently hold 2" at 25 yards, much less at 50 yards--and with TG too. Wow. Don't ever sell that gun.

[Boris_LA]

my 9mm loads with Hornady 125 HAP and TG group 1.75-2" at 50 yards with wrists rested on the counter

Man, I would love to see that. I hear about such things, but I have never seen a 9x19 that could consistently hold 2" at 25 yards, much less at 50 yards--and with TG too. Wow. Don't ever sell that gun.

I am not planning to sell it. Its my current BE gun. CZ-75 SP-01 with CGW 10Xbushing, trigger job, FP block removed, springs changed, Burris FF III mounted on the slide. I have another CZ-75B SA with similar upgrades and it shoots just as good, but a little lighter. CZ-75B SA has picatinni rail in the rear sights dovetail and i shoot it with iron sights or Burris FF III mounted. Zero stays on while reinstalling RedDot. Its my backup gun, but never needed it in the match yet.
Winning against some very experienced shooters with $3000+ match tuned 1911s wad-guns while using service pistol with less that $1000 after all upgrades gives me an additional pleasure seeing some grumpy looks, masked by fake smiles. I totally understand Joe L who loves to irritate his club fellows with JB Weld patched "Plastic gun" or dirty CZ Kadet.

[noylj]

Well, at least it is a gun that has had the work done to it to get there.
I know I would LOVE to get a CZ Accu gun--looks almost as good as a 1911.
I'm still shaking my head about TG. My guns and I aren't in your league, or state, or maybe planet, but I have NOT gotten any decent accuracy from any powder faster than AA5 in any 9x19.
Wow.

[noylj]

Did you get the SLOW twist barrel at about 1:30?

[Boris_LA]

Its a factory barrel whatever came with the gun. When i was testing the ammo gun had trigger job done and frame mounted reddot. CGW bushing and slide mounted red dot came later and didnt improve much since gun was accurate already. Some rare flyers are gone, but could be also because i learned to make better ammo.

[Boris_LA]

I have some very preliminary results from testing loads for CZ-97B.
First, the Hornady custom grade bullet seating die with integrated taper crimp didn't work well for crimping and i have gotten separate Lee taper crimp. After some internal polishing of tapered part of the Lee die it works better. Crimping to 0.470-0.471" for passing the "plunk" test.
Anvil on the Hornady bullet seating die was close for LSWC bullet profile, but still touching the bottom of the bullet cone. I have modified it using small lathe to seat on the shoulder and opened up cone part now is helping guide the bullet straight, but not applying the pressure. Tested with different seating depth 1.230, 1.235, 1.240, 1.245, 1.250" all feed and functioned fine, so I settle on 1.24" COAL for this bullet. Missouri Bullet 200gr (Bullseye #1) LSWC is my first testing/practice round. I also have a test batch of MB 185gr (Bullseye #2) and Zero swagged bullets coming.
Only tried so far HP-38 powder 5.0gr. Accuracy is on par with factory S&B 230 gr FMJ. 5-6" at 50m. One group was ~3", but i will test it more. Velocity with 5.0gr of powder was 860-890fps and didn't change much with different seating depth. Slide functioned well with all original springs and Burris RDS mounted. Recoil is slightly softer than with factory 230gr, but comparable.
My next test batch prepared with COAL 1.240" and again with powder HP-38 from 4.6gr to 5.0gr with 0.1 increments. Previous attempt to load with those charges didn't produce conclusive results.
Should i try some lower or hotter charges? Manuals said that with this bullet charge up to 5.6gr (and some refer to 6.0gr) is still safe. I don't want to make it hotter than necessary for accuracy. I don't need to meet a PF. I only need the bullet to make it to the center of 50yard target and not bouncing off the paper or sticking in the cardboard backing.

[Wobbly]

I only need the bullet to make it to the center of 50yard target and not bouncing off the paper or sticking in the cardboard backing.

Man, I'm laughing. That's one SLOW bullet !!   

With a bullet going that slow, you could get some of those Olympic fellows, with the brooms that sweep the ice in front of the curling stones, to stand down near the target and sweep the air around the bullseye. 

[Boris_LA]

I only need the bullet to make it to the center of 50yard target and not bouncing off the paper or sticking in the cardboard backing.

Man, I'm laughing. That's one SLOW bullet !!   

With a bullet going that slow, you could get some of those Olympic fellows, with the brooms that sweep the ice in front of the curling stones, to stand down near the target and sweep the air around the bullseye. 

You meant assistants with handheld fans correcting the bullet patch and directing it to the X-Ring? I can not afford that, but I can afford slightly more powder in the charge though.

[Boris_LA]

Here is an update on my load development for CZ97B.
Gun has been upgraded with CGW Pro trigger and slide has been sent to CGW for bushing conversion. It came back last week and quick indoor 50ft test results were very encouraging.
This weekend I have tested again at 50m rested some new reloads and found some very close to my target goal (pun intended).

After trying different powders (HP-38, Clay, BE, TiteGgroup) Titegroup came in the first again. I will soon retest the best loads with other powders since I have a good baseline from before the bushing conversion and possible ransom rest again with the best results. So far looks great and I have a lot of TG powder I am using it for 9mm. I may end up with single powder for both calibers.

[Boris_LA]

Another update. Today I have shot my first BE match with CZ-97B and my brand new reloads. I have used once fired (by me) S&B brass, WLP, TG powder and Zero 185gr JHP. This combo beat my previous results with CZ75 SP-01 9mm and 124/125gr JHP reloads. 45 bullets more forgiving on the small trigger mistakes, although I still managed to throw a couple of 7s and even one 5 on the 50 yrd line while still learning the trigger and sights in the match setup. On the long line i have only 2 x 88 and 1 x 90, but on the short line mostly mid and high 90s. No clean targets today, but a few 99 and 98s. Overall this was my best yet score finally breaking 1700 in a two guns match.
My big thank you to all who shared their experience and the knowledge and guided me in this new to me reloading world.

[Augie.Cooper]

For 45 I cast and shoot 200 grain swc pushed by clays or claydot powder depending on what I can get. Be aware if you are picking up range brass that some manufacturers are making small primer brass and some are crimping their small primer brass, not a big deal just a pain when you find it. I save all my small primer brass for shooting in my 625 with 250 grain bullets for bowling pins.

Sent from my XT1565 using Tapatalk

[Boris_LA]

Thank you for your recommendation. I have tried some 200 LSWC bullets and Clay powder as well as a few other powders. Results are good, but two powders were outstanding TG and BE. 200 LSWC bullets were also very close to Zero 185 JHP and much cheaper, but for the first match I picked JHP because i have a bit more confidence in them and that is just as important as a real performance. Questioning your bullet/ammo choice while shooting the match is never a good thing.