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xxCZ Set Trigger Details and Adjustment

June 21, 2012, 09:45:39 AM Hooz
: 1386 | : 0

DISCLAIMER: This was originally posted over at the CZ-USA Blog, but I wanted to repost it here to preserve it for posterity because it is the definitive guide to adjusting your set trigger.

The CZ Single Set Trigger System

A lifetime of hunting will expose you to a multitude of situations.  You will be presented with fleeting opportunities that require a quick shot and when hunting dangerous game you must be prepared for the life or death shot to stop a charge. On the other hand, most shots will give you the opportunity to shoot from a more stable position such as a rest, shooting sticks or a practiced kneeling or prone position. The CZ single set trigger (SST) system featured on 453, 527 and 550 models provides the shooter with the options to effectively handle any shooting situation they are presented with.

The SST allows for both a standard hunting trigger and a light target trigger in the same rifle. By operating the rifle in the same manner as any other bolt-action, the trigger is in the “standard” mode with the heavier of the two trigger pulls. By simply pushing the trigger forward until it “clicks” the crisp and light target trigger mode is set.The standard trigger is adjustable for weight, creep and over-travel.  The set trigger function is only adjustable for weight, but always breaks like glass. Many shooters will tell you that the single set trigger is a better aid to accuracy than a thousand dollar scope.

CZ SST “Perfect Pull” Trigger Adjustment

Tools required:  6mm wrench, 7mm wrench, one very small and one large common flathead screwdriver
“A” (standard trigger pull weight), “B” (creep), “C” (over-travel) and “D” (Set trigger pull weight).

  • Make sure magazine and chamber are empty.
  • Remove the stock from the barreled action.
  • Cock the rifle then, adjust screw “B” in until it fires, back off ¼ turn.
  • Loosen locking nut and remove screw “C” to allow easy access to screw “A”
  • Adjust screw “A” to desired poundage and tighten the lock nut (ensuring that the screw position does not change).
  • Replace screw “C”, turn it all the way in then back it out while pulling trigger until fires, then back out an additional ¼ turn, then tighten the lock nut for screw “C” down (ensuring that the screw position does not change).

Set Trigger Adjustment and Operation

To adjust the set trigger weight, adjust screw “D” in to lighten and out to make heavier. If you prefer to completely disable the set function, turn screw “D” all the way in until the rifle fires, then back off 1/4 turn.

An activated set-trigger is very sensitive to shock and during handling could unintentionally discharge if the set trigger is adjusted with too little travel. The safety of the SST adjustment can be checked with the rifle unloaded by repeated opening and closing of the bolt combined with moving of the safety to its “ON” and “OFF” positions in both set and unset modes. If the set trigger adjustment (engagement screw “D”) is too light, it will go off when doing this.  In this case, add more travel to the set trigger adjustment until it does not simultaneously go off. (DISCLAIMER: Do not attempt trigger adjustments unless you are confident in your ability to follow instructions for adjustments and safe operation.)

For safety, activate the set-trigger only after the rifle is loaded and when in position for the shot with safety in the off position. Do not carry your rifle with an activated set-trigger! If you have activated the set-trigger and you do not immediately take the shot, keep your firearm pointed in a safe direction and with the safety on, squeeze the trigger.

This process will get you very close to the best trigger pull possible with only slight adjustments needed, if any, to get it to the “Perfect Pull” for you.

xxCustom Reloading Tools' Bolt Handle

February 24, 2012, 12:05:48 PM Hooz
: 1683 | : 10

I ordered one of the new, extended CZ 527 bolt handles from Custom Reloading Tools the other day. When it gets here (this afternoon), I'll add some pictures of it compared to the factory bolt handle, as well as my thoughts on the fit/feel/function of the handle.

UPDATE: I took a few pictures of the new bolt handle compared to the factory one.

Here is the factory handle on a CZ 527 Carbine:

And the CRT handle installed on the same 527 Carbine:

Initially I thought the CRT handle was going to be way too long, but once I installed it and worked the action a few times, it isn't as unweildy as I anticipated. It does work as advertised. The increased leverage makes it much easier to lift the handle with a couple of fingers rather than grabbing and man-handling the factory handle. It is also pretty apparent how much more clearance the CRT handle offers for scopes with large eye pieces. The handle could still stand to be a bit shorter, and I'm not a huge fan of the round knob, but I'm looking into fixing those two things.

It should also be noted that CRT offers a different knob option, but it looks even bigger than the round one.

I don't mean to sound like I don't like the handle... On the contrary, I do like it. While not quite my ideal solution, it is leaps and bounds ahead of the factory bolt handle. It's up to the individual to decide whether or not is it worth the $80 pricetag.

exclamationNew CZ 527 - Varmint Target Kevlar

January 07, 2012, 10:34:54 AM Hooz
: 2201 | : 2

: CZ-USA Website
The new pattern of the Varmint Kevlar has been updated with a wide fore-end, vertical grip and hooked butt. The new design is optimized for shooting from a bipod or a front rest while remaining comfortable enough for offhand shooting.  The varmint/target model features a 24" hammer forged barrel and a Kevlar composite stock with an aluminum bedding block to resist the elements and provide the ultimate in accuracy.

It's initially available in .204 Ruger and .223 Remington. MSRP is $880, but I found it is "Available Soon!" at a few places online already for around $780.

Full details can be found here.

xxCZ 527 Pillar Bedding

November 07, 2011, 08:02:17 AM Hooz
: 1061 | : 4

Pillar Bedding a CZ 527 - Part 1

Part 2

xxReal Guns: CZ 527 American M1 in .223 Parts I and II

October 22, 2011, 08:29:10 AM Hooz
: 1235 | : 0

 Real Guns has a two part article/review of the 527 American M1 chambered in .223 Remington.

I have a few legacy rifles, those that I enjoy a great deal and want to save for my grandchildren for future use... way in the future. Rifles I can hand to them when they reach retirement age. None of them are fancy rifles, no exotic customs or even very expensive factory guns. Just accurate guns, worn from handling and shooting. Guns mostly made with modern manufacturing technology, but from traditional materials. I think the CZ 527 M1 American has the potential to fit into this category.

You can read Part I here and Part II here.

: [1] 2 3 4

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