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Author Topic: HM2 Barrel  (Read 192 times)

Offline BoBallistic

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HM2 Barrel
« on: May 29, 2018, 01:25:08 PM »
Just got in a few hours ago, a WhistlePig HM2 barrel and got a small strip of Emery cloth with it....I set up the CZ455 and removed the trigger shoe and then 17HMR barrel on it and got the receiver ready for the WP 17HM2 barrel.....

1) First impressions, it is light very light, compared to the 22" CZ barrels, this is a polymer barrel wrapped in a stainless steel liner....the finish is nice and clean, shame it going to get scratched up with me fitting it and sanding it down....but will post some pictures tomorrow of the CZ455 with the new WP 17HM2 and the other barrels for the CZ.....

2) One hour later - Still sanding with emery cloth polishing it down and it is almost there...another hour and I should have it, then I am going to reblue the part that I sanded....

3) Finally (around 11 pm) after a lot of sanding, got it fitted on the CZ455 receiver...look nice, put the rifle back together and it will go out with me to the range along with my other 17 HM2  (a Savage 93 20" Stainless Heavy Barrel with Gray Laminated stock) and see how it does.....

4) Pictures to follow or all the CZ455 with the 20" 17 HM2 barrel on it plus all the other barrels and calibers I have for it......
« Last Edit: May 30, 2018, 05:50:07 AM by BoBallistic »
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Offline BoBallistic

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Re: HM2 Barrel
« Reply #1 on: May 30, 2018, 10:37:33 AM »
OK - Finally got in the New WhistlePig 17HM2 Barrel installed and put the rifle back together again......After that, got all 4 of barrels and lay them out and took pictures of them for record information only....The 17HM2 barrel is installed on the CZ455 and is ready for the range....the TRACT Optic 22Fire scope is 4-12X x 40mm, has a BDC reticule....we will see what happens at the range.

Photos show that I have two 17HMR barrels, one with sights and one without sites....don't know why, I ordered them but I do......the other two barrel are the 22LR and the 22WMR....I own 5 barrels for the CZ455...great, what flexiblity right, but it comes at a cost....

Since the CZ455 is a switch-barrel type rimfire, to go from a short 22LR and a longer 22WMR, you will need an Magazine Adapter Block. When I first got the CZ455 in the 22 MAG configuration and then shortly got the 17HMR barrel for it, and when I got the 22 LR barrel a plastic piece came with it....This basically makes the shorter magazine fits into the longer magazine well....I went ahead and order two more Magazine Adapter Block and a Single shot magazine block and a couple of more 10 shot 22LR/17HM2 magazines this morning, what to make sure that if I lose one of the Magazine Adapter Block, that I will have another one...the one and only I have works great but what happens if I am in the woods hunting squirrels and somehow I accidentally hit the magazine release button, then all will drop out and the Magazine Adapter Block is a very small piece that you will loose if this happens....so I order two more from DIP (Diversity Innovative Products) and a couple of more other polymer magazines..... 
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Offline BLUETOE

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Re: HM2 Barrel
« Reply #2 on: May 30, 2018, 10:47:47 AM »
Great looking combo Bo can't wait to see how the new barrel performs at the range.
If it's brown it's down

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Offline BoBallistic

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Re: HM2 Barrel
« Reply #3 on: June 07, 2018, 05:39:33 AM »
Bue - See Range Results 6-6-18 posting....it shot pretty good, had to tweak the scope on it for the first three rounds then settle in on a nickel size group at 50 yards....so I need to dig out my Eley Ammo for it before heading back to the range....
NRA Life-Endowment-Patron Member
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2018 NWTF Member
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20 yrs of Western Elk/Muley/Antelope Hunts
2009 & 2011 African Safaris
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Offline BLUETOE

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Re: HM2 Barrel
« Reply #4 on: June 07, 2018, 01:05:12 PM »
Bue - See Range Results 6-6-18 posting....it shot pretty good, had to tweak the scope on it for the first three rounds then settle in on a nickel size group at 50 yards....so I need to dig out my Eley Ammo for it before heading back to the range....
I just looke dat the results that is a sweet rig Bo!!
If it's brown it's down

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Offline BoBallistic

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Re: HM2 Barrel - CZ455
« Reply #5 on: July 05, 2018, 01:21:35 AM »
Replaced the Original Trigger Spring with a much lighter trigger spring. Even though the original CZ trigger spring can be adjusted, it cannot be adjusted down any farther than I had it adjusted too. I think, I was getting about 3.5 lb trigger pull. The trigger broke clean and crisp at 3.5 Lbs....no problems. Currently, have the 22 LR barrel installed in it and on my last range visit used the 22 LR Lapua Midas 40 gn ammo and it shot very good. The following day order a new trigger spring for it.

It takes several hundred rounds to break in a 22 barrel and this was the first rounds that I fired it at the range on 6-21. The results speak for themselves, it shot the best group and it did beat out the Eley 40 gn subsonic ammo....so I was thinking that if this rim fire shot this well with the Original Trigger Spring (adjusted) what would the result be if I got a new lighter trigger spring for it...on 6-22 ordered a new trigger spring kit from DIP Products (these folks has most all of your CZ rim fire products, they are located in Oregon so call around noon (it was around 9 AM their time)...LOL...got the items I order in about 2 days...fast delivery and great customer service. 

The Kit came with 4 springs in it. I installed the next to the lightest one, the 2.0 Lb pull trigger. If you have never messed with a trigger replacement I suggest that you go to YouTube and view the video on it...very simple and easy to do. I did it yesterday in about 30 minutes on a portable diner tray,...LOL...That included gathering the tools and clean up. I was watching the Outdoor Channel as well. Once I got the new trigger spring installed and the rim fire back together, I got the old Lyman Trigger Pull Gauge out and tested it. I have a spent casing that I use to make sure the firing pin fell on a casing during the dry firing and checking out the trigger. I did this pull test while the rim fire was apart and again when it was totally together (sometimes it makes a difference) the results were about the same, the average of 10 pulls was 2.1 lbs..

I also took the trigger shoe off as well. You have to take the trigger shoe off before you take the rifle apart...the trigger shoe spreads the pull pressure over the area of your finger and results in making the trigger lighter than it actual is set for...I was thinking that now with this 22 LR installed, I will go back and install the Trigger Shoe and head to the range and check out what the new trigger spring result in!!! Should be interesting..... --09--0
NRA Life-Endowment-Patron Member
RMEF Life Member
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Proud Member of Butts County Sportsman Asso
20 yrs of Western Elk/Muley/Antelope Hunts
2009 & 2011 African Safaris
Share Your Knowledge

 

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