cart SHOPPING CART You have 0 items
SELECT CURRENCY

Discussion Forums

Search forums
Forum Index > Rifles general discussion > Weatherby trigger adjustment

Weatherby trigger adjustment

07 Mar 2013
@ 11:50 pm (GMT)

Ed Stewart

Hi Nathan
I am just finishing up the bedding job on the weatherby, looks like it has gone to plan but will see when I get some rounds through it.
I thought I would lighten the trigger while I was at it but the adjustment screw will only adjust it between 4.5 to 5.5lbs
I pulled the trigger apart, cleaned and lubed it all and took and burrs of the trigger and housing then tried again. Still no better but even with the adjuster srew out of the trigger it was still 4.5lbs
So then I drilled the spring recess in the housing as deep as i could without taking too much thread away for the adjuster.
It is now at 3.7lbs but still no where near 2lbs. I am running out of ideas, the safety wont work at 3.7lbs but I found and article you put on longrangehunting.com to sort that out. I am using a brand new Wheeler trigger pull scale from relaoders so it should be accurate.
Have you come across this before or do I just fork out for a Timney trigger?
Cheers, Ed.

Replies

08 Mar 2013
@ 02:41 pm (GMT)

Nathan Foster

Re: Weatherby trigger adjustment
Hi Ed, rather than hold the pull scale across the trigger. Could you please align the pull scale perpendicular to the trigger and try again. I find that the wheeler gives a false reading when set in the same position as a finger. In other words, set the pull scale so that its tip is grabbing the very bottom of the trigger, the curve in the scale wire pointing down. Odd but that's the only way to get a correct reading.

I have never seen a Howa/WBY trigger that would not give 1 to 1.5lb. I wonder what is going on. Actually, could you do two tests please. One without the spring altogether. Hold the trigger fowards by hand and then cock the rifle and do the pull test as described. Then do the test again with the spring. If the trigger is heavy without a spring, the sear angles are wrong. If so, I will help privately. It is too dangerous to put such details on an open forum.

I need to get my trigger mod tutorial on this site, I posted that small tutorial on LRhunting.com years ago.
08 Mar 2013
@ 03:22 pm (GMT)

Ed Stewart

Re: Weatherby trigger adjustment
Ok so with the scale perpendicular to the trigger it gives a reading of 3lbs.
With the spring removed usng the same technique it is just over 1lb.

The reason I drilled the spring recess deeper was because the adjuster was only touching the spring the last turn in on its thread. So even with the adjuster right out the spring still had close to the max tension on the trigger.
08 Mar 2013
@ 05:25 pm (GMT)

Nathan Foster

Re: Weatherby trigger adjustment
Could you call me on our land line please Ed. Will sort it.
10 Mar 2013
@ 05:26 am (GMT)

Ed Stewart

Re: Weatherby trigger adjustment
Hi Nathan, just a quick update. I ran out of time over the weekend to get everything done I wanted to. I have lapped the recoil lugs so they are both touching the same ammount but they could do with a little bit more. They were out by quite a bit. Trigger still needs a bit of fine tuning but it is much better. I have worked up the 150g SST to 52g of 2209 and the primers are starting to flatten right off but I will still keep working it up. Rifle is shooting sub MOA so shouldnt have any trouble with the fallow deer this week.
Thanks, Ed.
10 Mar 2013
@ 03:34 pm (GMT)

Nathan Foster

Re: Weatherby trigger adjustment
Sounds good so far. Musn't be far off absolute max. If the primers are flattening now, case life may be shortened so when you get a chance, reload the same cases and study how the fresh primers seat.

If you are getting full pressures, you will also be getting full velocities. You may already be up and over 2950fps. This is a classic example of why reloading manuals have to play it safe and I have been through it myself. While one .270 rifle will take 54.5gr of 2209 (H4350), another will hit max much lower. All we can do is work up loads and study results with an attention to pressure signs as you have done.

Keep your camera handy when hunting please.
11 Mar 2013
@ 03:29 am (GMT)

Ed Stewart

Re: Weatherby trigger adjustment
Ok thanks Nathan, when I get a chance I will put some of them through the chrony. I wasnt too worried about the velocity at the moment, just pressure and accuracy.
Yip I will take plenty of photos if I manage to get something.
 

ABOUT US

We are a small, family run business, based out of Taranaki, New Zealand, who specialize in cartridge research and testing, and rifle accurizing.

store