Posts: 682
Threads: 56
Joined: Dec 2016
11-22-2020, 05:04 PM
(This post was last modified: 12-04-2020, 08:35 PM by LRRPF52.)
Does anyone know the length of the CZ Micro Mauser action in Grendel?
Short action average 6.9 inches
Howa Mini Action is 6.0 inches...
Just trying to getva perspective of the CZ Micro Mouser action in reference to the 2 others.
People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf. ― George Orwell
Posts: 132
Threads: 4
Joined: Aug 2014
My CZ 525 min Mauser, not mouser, measures 6 1/2 inches from front ring to the rear of the closed bolt. 6 3/4 to rear tang.
Member before 2010, account deleted per 2011 spam attack
Posts: 682
Threads: 56
Joined: Dec 2016
jkingrph Wrote:My CZ 525 min Mauser, not mouser, measures 6 1/2 inches from front ring to the rear of the closed bolt. 6 3/4 to rear tang.
"Speech to text" posting... you can blame that on my so called handicap assist device haha.
I am assuming the Micro Mauser is a happy medium from Howa Mina and Short actions...
Posts: 641
Threads: 35
Joined: Dec 2017
It feels, looks, and cycles every bit as small and short as the Howa. It feels as close to a rimfire rifle as youre going to get. I find it feels more like a rimfire than the howa. I have Howa 20 lightweight and 22 standard and cz American.
Posts: 132
Threads: 4
Joined: Aug 2014
I have never seen a Howa, but have two CZ527's one a 22 Hornet Prestige, the other my 6.5 Grendel American. They are tiny, and the bolt action can be rather sticky at first, both of mine were. A lot of cycling and they are now slick as greased glass.
Member before 2010, account deleted per 2011 spam attack
Posts: 682
Threads: 56
Joined: Dec 2016
Stinky Coyote Wrote:It feels, looks, and cycles every bit as small and short as the Howa. It feels as close to a rimfire rifle as youre going to get. I find it feels more like a rimfire than the howa. I have Howa 20 lightweight and 22 standard and cz American.
jkingrph Wrote:I have never seen a Howa, but have two CZ527's one a 22 Hornet Prestige, the other my 6.5 Grendel American. They are tiny, and the bolt action can be rather sticky at first, both of mine were. A lot of cycling and they are now slick as greased glass.
Thanks Gents... I appreciate the insight.
People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf. ― George Orwell
Posts: 6,206
Threads: 50
Joined: Mar 2011
jkingrph Wrote:I have never seen a Howa, but have two CZ527's one a 22 Hornet Prestige, the other my 6.5 Grendel American. They are tiny, and the bolt action can be rather sticky at first, both of mine were. A lot of cycling and they are now slick as greased glass.
My Cz 527 6.5 Grendel bolt is sticky closing but I saw on a forum where someone mentioned using their thumb to push the bolt closed. I tried pushing the bolt forward with my thumb and it was silky smooth. Using the bolt handle only it is sticky and clunky closing. The bolt always slides smoothly to the rear.
Posts: 682
Threads: 56
Joined: Dec 2016
VASCAR2 Wrote:My Cz 527 6.5 Grendel bolt is sticky closing but I saw on a forum where someone mentioned using their thumb to push the bolt closed. I tried pushing the bolt forward with my thumb and it was silky smooth. Using the bolt handle only it is sticky and clunky closing. The bolt always slides smoothly to the rear.
Military arms channel actually talked about the Bolt being an issue in his review on YouTube.
https://youtu.be/08ctBg29UIU
Posts: 313
Threads: 13
Joined: Jun 2019
I'm not trying to be an ass, but when I saw the request for the length of a "micro mouser", I immediately pictured you guys trying to measure a bunch of very small kittens.
Posts: 132
Threads: 4
Joined: Aug 2014
VASCAR2 Wrote:My Cz 527 6.5 Grendel bolt is sticky closing but I saw on a forum where someone mentioned using their thumb to push the bolt closed. I tried pushing the bolt forward with my thumb and it was silky smooth. Using the bolt handle only it is sticky and clunky closing. The bolt always slides smoothly to the rear. All three of my CZ rifles were sticky when I got theml. I ended up applying some flitz polish and cycling a lot, wiped down, replace flitz and cyclied some more, then ceaned very thoroughly and lubed and the are now silky smooth using the handle. There are also some extremely square corners on rear surfaces of the bolt, I lightly stoned those with a fine ceramic stone just to break the edges and that also helped a lot. Look for any roughness, machine marks or sharp edges on the bolt and address them
Member before 2010, account deleted per 2011 spam attack
Posts: 6,206
Threads: 50
Joined: Mar 2011
mdewitt71 Wrote:Military arms channel actually talked about the Bolt being an issue in his review on YouTube.
https://youtu.be/08ctBg29UIU
Thanks for the link Ill have to try his technique on closing the bolt. Ive only shot my Cz four or five times and the bolt is getting a little better. I just havent had the time the last couple years to try and polish the bolt. I did relieve the stock and adjust the trigger. So far the accuracy looks good and I like the rifle.
Posts: 682
Threads: 56
Joined: Dec 2016
So I found this video of a CZ Micro bolt fix.... not sure if it will fix all CZ bolts issues but, was interesting-
[video=youtube_share;1pmu-51tLPU]https://youtu.be/1pmu-51tLPU[/video]
People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf. ― George Orwell
Posts: 6,206
Threads: 50
Joined: Mar 2011
Thanks for posting mdewitt71. If I get time this weekend Ill see if that helps my Cz 527.
Posts: 641
Threads: 35
Joined: Dec 2017
Czs wear in, not out. So they are a little rough and sticky new but they just get sweeter and sweeter over time and use. Not many guns like that.
Posts: 6,206
Threads: 50
Joined: Mar 2011
I grabbed my Cz and cycled the bolt with no mag and it cycled smoothly. I guess Ill try to do some testing if the weather permits in the next couple of days. Like you said it might be wearing in and getting smoother.
Posts: 6,206
Threads: 50
Joined: Mar 2011
More experimentation on my Cz 527 today. I think my binding bolt issues are associated with my new magazines. The bolt cycles smoothly with no mag or an empty mag. Feeds much better with only one or two rounds in the mag. My original mag which has been used more is better than the second mag I purchased. I think once the mags wear in this will be a smooth cycling bolt action. There doesnt appear to be any excess movement in the bolt so I didnt do any adjustment to the extractor as shown in the video.
Posts: 281
Threads: 15
Joined: Apr 2019
I think the CZ is a more finished/refined action with better machining / finishing than the Howa. All of this translates to it being a slightly smaller action with a lighter bolt that is marginally larger than a rimfire. Due to the size difference of CZ527 as compared to a standard short action (REm700, Savage, etc) if you try to work the bolt with same force then you are likely to bind the CZ's bolt when cycling it forward. It only takes a finger to run it... if you like firmly grabbing the bolt knob then odds are you will inadvertently be applying force on an diagonal to the left, and not just straight forward. There are two easy solutions that I find to resolve this issue (1) thumb directly behind the bolt to push it forward &/or (2) replace the bolt knob with something slightly larger for better dexterity, such as Badger Ordnance Mini-tactical knob, which allows better control of the bolt motion.
One other difference between the CZ and Howa is the type of bolt feed design. The CZ is truly a mini-mauser featuring controlled cartridge feed from the magazine. There is a little more resistance with this style action as the cartridge is stripped off the magazine, it is fed/capture behind the Mauser-style extractor claw. Whereas, the Howa bolt feed is simply a push feed (no positive retention of the cartridge) so there is less effort/resistance stripping off the cartridge from the magazine and pushing it into the chamber. The lips on the CZ's magazines can be tight and rather sharp. To smooth out the feeding and also reduce risk of creases/grooves being cut into brass case by magazine lips, I disassemble the magazine and use a dowel wrapped with sandpaper to round-over the sharp edges of the feed lips on inside and outside of magazine.
Hopefully this helps.
Posts: 641
Threads: 35
Joined: Dec 2017
Saw interesting video where a guy pulled the extractor slide off the action and curved it more outward so it applied more pressure in the channel in the action to limit the directional bind. He just curved it over a screw driver shaft with some pressure or weight from hands on either side...just bending the bow so to speak. He sure seemed to make a big difference to the cycling of his new .223. Be a good one to find and post. My cz runs pretty good but when I pull it out next I may see before and after anyway?
|
