Page 1 of 5 12345>
Topic Options
Rate This Topic
#204966 - 01/10/20 09:34 AM Step by step 357 project
reflex264
Pooh-Bah


Registered: 05/04/12
Posts: 2058

Offline
I know most of you are very gun savvy but some are a little newer to handguns and handgun hunting. I am going to start a thread showing before and after results on my 357 Blackhawk. I decided to just copy the post I started on this project from the Tennessee Handgun Hunters group on FB. as the parts all arrive I will update the thread here as well. Here goes....

We already know that these guns are capable of 2" groups at 100 yards. The first steps to improving the accuracy of one of these guns is a thorough inspection. Obviously the first thing to check is the barrel. You should look for pitting, metal deposits, damage to the muzzle or cracks, leading or erosion at the forcing cone. In this case all of these items are in great shape.

The gun 1974 new model pre-warning blackhawk


testing accuracy with a known accuracy load at 25 yards from a rest over 3". Unacceptable from a gun that I know can shoot 2" at 100 yards.



To be continued..............

Next is the base pin. On a gun of this age wear is expected. On this particular gun there are rough spots and bumps. Close examination of the frame and cylinder reveal moderate wear on both surfaces. This results in a condition known as end shake. This is a definite detriment to accuracy. Fortunately there is a cure for this too.




Now we want to look at the cylinder gap and clearance at the gas shield which is the boss that the base pin protrudes through in to the cylinder. In this case the cyl gap is .004" and so is the gas shield clearance.
.004" is on the far end of acceptable but within limits. Gas shield clearance on a gun such as this should be between .001" and .002". This will have to be addressed but not a major issue.





Edited by reflex264 (01/10/20 06:48 PM)
_________________________
"A quiet hit in the right place is better than a loud miss in the wrong place followed by 10 more shots on the run"

I was a handgun hunter, when handgun wasn't cool.....

Top
#204970 - 01/10/20 09:58 AM Re: Step by step 357 project [Re: reflex264]
H2OBUG
Pooh-Bah


Registered: 02/13/08
Posts: 2202
Loc: Louisiana

Offline
Interested to see how it goes. I have ben looking for a older Bisley 7.5" in 357 to do the same. Have a 44 and 45 that shoot very well. As you say 2"ish at 100 yds

I had a model 28 6" S&W I mounted a 2x Leupold on. I shot cast bullets in one hole at 50 yards.
_________________________
If it jams force it! If it breaks it needed replacing anyway.

Top
#204983 - 01/10/20 06:43 PM Re: Step by step 357 project [Re: H2OBUG]
reflex264
Pooh-Bah


Registered: 05/04/12
Posts: 2058

Offline
Those Bisley 357s are slightly hard to come by. You can always buy a Blackhawk and turn it into a Bisley.
_________________________
"A quiet hit in the right place is better than a loud miss in the wrong place followed by 10 more shots on the run"

I was a handgun hunter, when handgun wasn't cool.....

Top
#204987 - 01/11/20 08:25 AM Re: Step by step 357 project [Re: reflex264]
45MAN
Pooh-Bah


Registered: 08/13/17
Posts: 1640
Loc: brownsville, texas

Offline
R264: KEEP IT COMING
_________________________
"ADAPT OR DIE". I USE ALL CAPS, NOT BECAUSE I AM YELLING, BUT BECAUSE IT IS AN OLD HABIT FROM MY ARMY DAYS, PLUS IT IS EASIER TO TYPE AND READ.

Top
#204996 - 01/11/20 05:28 PM Re: Step by step 357 project [Re: 45MAN]
jamesfromjersey
Shootist


Registered: 01/18/04
Posts: 9394
Loc: New Jersey

Offline
your not kidding about unacceptable 25yd accuracy
a .004" gap is not to bad...
_________________________
Life member-NRA-SCI
Member-HHI #2900-HHASA #067
Colt-Ruger-Freedom Arms-and S&W Collector Assoc.s
"I have more guns then I need but not as many as I want" "Handgun hunters HAVE to be good"

Top
#205025 - 01/13/20 12:49 AM Re: Step by step 357 project [Re: jamesfromjersey]
reflex264
Pooh-Bah


Registered: 05/04/12
Posts: 2058

Offline
The end shake bad on this one as is the 4lbs 14oz trigger. Last part on the way.
_________________________
"A quiet hit in the right place is better than a loud miss in the wrong place followed by 10 more shots on the run"

I was a handgun hunter, when handgun wasn't cool.....

Top
#205186 - 01/20/20 07:01 PM Re: Step by step 357 project [Re: reflex264]
reflex264
Pooh-Bah


Registered: 05/04/12
Posts: 2058

Offline
Well the parts are all in. Now for some time to get this underway!
_________________________
"A quiet hit in the right place is better than a loud miss in the wrong place followed by 10 more shots on the run"

I was a handgun hunter, when handgun wasn't cool.....

Top
#205193 - 01/20/20 10:59 PM Re: Step by step 357 project [Re: reflex264]
N-Frame
journeyman


Registered: 03/11/16
Posts: 87

Offline
May I ask what your "known accuracy" load is? I'm always looking for accurate loads.

Top
#205194 - 01/21/20 08:23 AM Re: Step by step 357 project [Re: N-Frame]
jcp161
member


Registered: 11/05/08
Posts: 122

Offline
Interesting thread.

Learning some things and very interested to see the end result.

Top
#205196 - 01/21/20 09:28 AM Re: Step by step 357 project [Re: jcp161]
reflex264
Pooh-Bah


Registered: 05/04/12
Posts: 2058

Offline
158 XTP
GM200M primer
15.8grs H110
Starline case

Never saw a good tight gun that wouldn't shoot bug holes with that load.
_________________________
"A quiet hit in the right place is better than a loud miss in the wrong place followed by 10 more shots on the run"

I was a handgun hunter, when handgun wasn't cool.....

Top
Page 1 of 5 12345>


Moderator:  Chance Weldon, Gregg Richter, Gary 
Hop to:
 Portal Sidebar
Who's Online
0 registered and 151 anonymous users online.
Top Posters
9836
Whitworth
9608
s4s4u
9394
jamesfromjersey
7643
wapitirod
7327
TCTex.
6782
KRal
5217
Ernie
5057
Gary
4704
Tigger
4537
Franchise
4461
pab1
4426
Chance Weldon
4370
Dan B.
4132
Gregg Richter
3755
johnwilliams
  Member Hunts
Classic .22 Handgu
Classic .22 Handguns by Colt and Smith & Wesson

Sika in the Rain
Sika in the Rain

   Access Requires Login

Generated in 0.057 seconds in which 0.014 seconds were spent on a total of 15 queries. Zlib compression enabled.




Copyright © 2000-2008
HandgunHunt.com, Inc.