ILS. When to use?

View previous topic View next topic Go down

ILS. When to use?

Post by beeser on Wed Jan 21, 2015 12:57 pm

When and how is the ILS supposed to be used?  I have them on a few of my handguns but haven't used them yet.  All firearms on my property are locked in a gun safe when not in use.  I only use my guns at a local range and are transported there in the back of my locked and enclosed pickup camper shell.  The cases that they are stored in there are not individually locked.  So, when are you supposed to use the ILS?

beeser

Posts : 920
Join date : 2014-06-19

Back to top Go down

Re: ILS. When to use?

Post by dhenry132 on Wed Jan 21, 2015 1:12 pm

I use then to line trash cans

dhenry132

Posts : 46
Join date : 2014-02-10
Location : Republic of Texas

Back to top Go down

Re: ILS. When to use?

Post by james r chapman on Wed Jan 21, 2015 1:15 pm

dhenry132 wrote:I use then to line trash cans
(snicker)

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

Re: ILS. When to use?

Post by Jon Eulette on Wed Jan 21, 2015 1:22 pm

LMAO

Jon Eulette

Posts : 1159
Join date : 2013-04-15
Location : Southern Kalifornia

Back to top Go down

Re: ILS. When to use?

Post by dronning on Wed Jan 21, 2015 1:36 pm

My opinion on the ILS is that it's use can create dangerous gun handling practices, like in oops I thought the ILS was engaged! If someone were to treat any gun in any way other than believing it is loaded and could be discharged then that person is not being safe.

If you want to lock your guns during transit then at least use a VISIBLE preferably yellow trigger lock or a cable lock that goes through the barrel.

- Dave

Sorry that's the Safety Officer in me speaking

dronning

Posts : 1122
Join date : 2013-03-20
Age : 63
Location : Lakeville, MN

Back to top Go down

Re: ILS. When to use?

Post by Rob Kovach on Wed Jan 21, 2015 11:56 pm

I agree with Dave.  ILS isn't a very good idea.

Rob Kovach
Admin

Posts : 2552
Join date : 2011-06-14
Age : 43
Location : Brooklyn, WI

Back to top Go down

ILS mainspring swap

Post by Russ OR on Thu Jan 22, 2015 11:10 am

Not the answer to the question-just a note:  
Wolff makes several lighter weight SA ILS mainsprings that work well. - the #s won't sound right, but trust Wolff. A couple of us use Wolff's lightest ILS mainspring (24lb) with no ignition problems. Improves trigger pull weight.

Russ OR

Posts : 121
Join date : 2011-06-10
Location : Oregon City, OR

Back to top Go down

Re: ILS. When to use?

Post by beeser on Thu Jan 22, 2015 11:34 am

Russ OR wrote:Not the answer to the question-just a note:  
Wolff makes several lighter weight SA ILS mainsprings that work well. - the #s won't sound right, but trust Wolff. A couple of us use Wolff's lightest ILS mainspring (24lb) with no ignition problems. Improves trigger pull weight.
Thanks Russ, I really appreciate this note!  Am I correct in understanding that you are keeping the stock mainspring housing for this lighter weight spring?  If so, is there a reason why you don't change the mainspring housing in favor of one without the ILS like others have mentioned?

beeser

Posts : 920
Join date : 2014-06-19

Back to top Go down

Re: ILS. When to use?

Post by james r chapman on Thu Jan 22, 2015 12:20 pm

As rob has said before. Replace the spring and spring cap and install a spring cap pin and your good to go.

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

ILS lighter mainsprings-why

Post by Russ OR on Thu Jan 22, 2015 12:22 pm

I kept the ILS housing for no particular reason-just seemed easier-the ILS housings with the disassembly pin that came with the pistol are A-OK to work with. . I know some change to a standard housing and that works too. -- Then there's something about all safety features that came on the pistol have to be operable?. That probably doesn't/might not apply to swapping out the ILS housing.

Russ OR

Posts : 121
Join date : 2011-06-10
Location : Oregon City, OR

Back to top Go down

Re: ILS. When to use?

Post by james r chapman on Thu Jan 22, 2015 1:21 pm

The disassembly pin doesn't work with a regular mainspring and spring cap.

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

Re: ILS. When to use?

Post by marlin1881 on Thu Jan 22, 2015 1:42 pm

And, be sure to get the correct mainspring depending on whether it is an ILS housing or not.  The mainspring cap is different between a standard and ILS housing.  The mainsprings are different in length, to compensate for the length of the cap.  I just got a new cap and mainspring and installed in the factory housing.  Works fine, but obviously, ILS is disabled.


Last edited by marlin1881 on Thu Jan 22, 2015 1:44 pm; edited 1 time in total

marlin1881

Posts : 44
Join date : 2011-06-11
Location : Northern Colorado

Back to top Go down

Re: ILS. When to use?

Post by james r chapman on Thu Jan 22, 2015 1:43 pm

Get a standard cap and standard mainspring

james r chapman

Posts : 1596
Join date : 2012-01-31
Age : 67
Location : HELL, Michigan

Back to top Go down

Re: ILS. When to use?

Post by beeser on Fri Jan 23, 2015 8:04 pm

Russ OR wrote:Not the answer to the question-just a note:  
Wolff makes several lighter weight SA ILS mainsprings that work well. - the #s won't sound right, but trust Wolff. A couple of us use Wolff's lightest ILS mainspring (24lb) with no ignition problems. Improves trigger pull weight.
I just received my Wolff springs today.  How much can I expect the trigger pull weight to be reduced?  Also, what recoil spring weight are you using with the 24# ILS mainspring?

beeser

Posts : 920
Join date : 2014-06-19

Back to top Go down

Re: ILS. When to use?

Post by Rob Kovach on Fri Jan 23, 2015 11:14 pm

I wish you would have just replaced the mainspring cap and mainspring with a GI version--that way you would be dealing with a known setup.

My testing shows that a 17# GI mainspring is too light and causes sporadic ignition problems. An 18lb GI mainspring is as light as you go and avoid ignition problems, so let's assume that the Wolff 24# ILS spring is equivalent to the 18# GI spring.

For 200gr LSWCs with 3.8gr BE, I use 18-20# recoil springs with iron sights.
Same load with a full sight rib and Ultradot, I use a 10# recoil spring.

In ROs that I have worked on, the trigger weight is more than my NRA standards could measure.  I estimate that at 6lbs.  After changing to the 18# GI mainspring and GI mainspring cap, The trigger weight in most guns came down to about 4.5-5lbs.

A little bending of the left leg of the leaf spring easily gets you to the 4lb level with all other OEM parts.

Rob Kovach
Admin

Posts : 2552
Join date : 2011-06-14
Age : 43
Location : Brooklyn, WI

Back to top Go down

Re: ILS. When to use?

Post by beeser on Sat Jan 24, 2015 10:03 am

Rob Kovach wrote:I wish you would have just replaced the mainspring cap and mainspring with a GI version--that way you would be dealing with a known setup.

My testing shows that a 17# GI mainspring is too light and causes sporadic ignition problems. An 18lb GI mainspring is as light as you go and avoid ignition problems, so let's assume that the Wolff 24# ILS spring is equivalent to the 18# GI spring.

For 200gr LSWCs with 3.8gr BE, I use 18-20# recoil springs with iron sights.
Same load with a full sight rib and Ultradot, I use a 10# recoil spring.

In ROs that I have worked on, the trigger weight is more than my NRA standards could measure.  I estimate that at 6lbs.  After changing to the 18# GI mainspring and GI mainspring cap, The trigger weight in most guns came down to about 4.5-5lbs.

A little bending of the left leg of the leaf spring easily gets you to the 4lb level with all other OEM parts.
I may eventually change the mainspring housing, etc. with the standard GI version but for now it makes sense to me to stay with the ILS setup.  Springfield Custom already did a trigger job on one of the ROs, which brought the trigger weight down to 4 lbs.  My electronic scale actually shows a little less than 5 lbs.  I don't which one is more accurate but the true weight is probably somewhere between.  Anyway, I was thinking of reducing the mainspring one size down to 28 lbs. from the factory 30 lbs. and reducing the recoil spring down one size to 15 lbs. from the factory 16 lbs.  I'm only using for now 185g LSWCs with 3.8g of Bullseye and ejection is just a little shallow.

beeser

Posts : 920
Join date : 2014-06-19

Back to top Go down

Re: ILS. When to use?

Post by Rob Kovach on Sat Jan 24, 2015 12:22 pm

Only change 1 spring at a time.  When you reduce the mainspring weight you need to increase the recoil spring to keep the gun operating the same.

As far as trigger weight change from just reducing the mainspring, you will find it decreases about 3/4lb

Rob Kovach
Admin

Posts : 2552
Join date : 2011-06-14
Age : 43
Location : Brooklyn, WI

Back to top Go down

Re: ILS. When to use?

Post by Sponsored content Today at 9:03 pm


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum