Bat M Action, any tips?

[jackieschmidt]

I have had a Bat M for several years, it’s had several barrels in different calibers on it.

I have always suspected that it’s a little off in it’s accuracy potential.

I chambered up a 12 twist Krieger HV barrel for it, 6BR, and in my opinion it shot mediocre, at best. I have a similar barrel on my Bat Neuvo HV, and it shoots like a Benchrest Rifle with the Bart’s 80 grn BT.

So, two weeks ago, I took the barrel off of the big M and re threaded the tenon for my Neuvo. (1.125 16 tpi to 1.062 18 tpi).

The barrel now shoots great.

Since I am getting ready to use this M on another project, I am curious if anybody has any tips on making them shoot better. Maybe in the firing pin/ ignition department.

 

[liljoe]

Are the lugs both mating good? The ignition is a whole nuther can of worms.

Joe

 

[ronsatspokane]

Call BAT. They are very helpful and I'm sure they'll have questions and be willing to take a look at it.

 

[jackieschmidt]

The lugs look great, both nice even contact. The timing seems on, the bolt just sits there when dry fired.

in truth, the thing does everything but shoot great. I too have a feeling it’s in the ignition. I checked the static firing pin drop, about 26 pounds. That seems about right for this large pin assembly.

It’s in a Shehane stock now, but have had it in a Robertson.

 

[Terry]

Call BAT. They are very helpful and I'm sure they'll have questions and be willing to take a look at it.

They are great! Do call them.

They helped me.

 

[Shooter13]

Dwight Scott.

 

[ridgeway]

Get a new(revised) .280" firing pin and a new spring for starters.

 

[JamesnTN]

Jackie,

I own 2 Bat M actions and one will shoot circles around the other. I had Alex Wheeler go thru the newer one and he couldn’t find anything wrong. In my opinion there are hummer actions Juan’s this as there are hummer barrels. Only thing I can figure is it’s all in the metal. Not to say it’s a bad action it’ll shoot but the other one shoots much better.

 

[Kurz]

I chambered up a 12 twist Krieger HV barrel for it, 6BR, and in my opinion it shot mediocre, at best. I have a similar barrel on my Bat Neuvo HV, and it shoots like a Benchrest Rifle with the Bart’s 80 grn BT.

So, two weeks ago, I took the barrel off of the big M and re threaded the tenon for my Neuvo. (1.125 16 tpi to 1.062 18 tpi).

The barrel now shoots great.

Since I am getting ready to use this M on another project, I am curious if anybody has any tips on making them shoot better. Maybe in the firing pin/ ignition department.

Jackie,

Rather than call BAT and expect them to have an immediate response and solution your dilemma, I would send an e-mail requesting a person's name and the address to use to return the action to them, for them to analyze without the immediacy of the phone call. Let them test the action, make all the measurements necessary then discuss it among themselves before giving their assessment to you. I would include the facts about the barrels which have been on this action as well as the story you related above. You are not an unknown shooter, they should pay attention to your questions.

 

[jonbearman]

How do you go from 1/18 thread to an 1.062 or is it typo Jackie? Just curious.

 

[Dusty Stevens]

How do you go from 1/18 thread to an 1.062 or is it typo Jackie? Just curious.

1-1/8 is bigger than the 1.062 so you just turn it down and switch to 18tpi

 

[jackieschmidt]

How do you go from 1/18 thread to an 1.062 or is it typo Jackie? Just curious.

As dusty said, just turn it down and establish the 18 tpi. After you turn it, you can barely see the remnants of the 16 tpi that was on the 1.125 tenon.

After you thread it for the Neuvo, which is 1.062 18tpi, you can’t even tell.

 

[mr45man]

assuming you used the same scope?

 

[jackieschmidt]

Jackie,

I own 2 Bat M actions and one will shoot circles around the other. I had Alex Wheeler go thru the newer one and he couldn’t find anything wrong. In my opinion there are hummer actions Juan’s this as there are hummer barrels. Only thing I can figure is it’s all in the metal. Not to say it’s a bad action it’ll shoot but the other one shoots much better.

Some years ago Charles Huckabee told me that very thing. Some actions are born good. Some not. If you get one that was “born bad”, it will never be right, regardless what you do to it.

He told me that years ago, when Bob Scoville first started building his carbon fiber stocks, Charles ordered one and sent Bob the action that he wanted glued in. In was a rather aged Panda. Bob contacted Charles and asked if he was sure he wanted to use that instead of a new action.

Charle told him that old Panda was a National Champion.

It was “born good”.

 

[jonbearman]

As dusty said, just turn it down and establish the 18 tpi. After you turn it, you can barely see the remnants of the 16 tpi that was on the 1.125 tenon.

After you thread it for the Neuvo, which is 1.062 18tpi, you can’t even tell.

I was under the impression you threaded the receiver, my mistake.

 

[Alex Wheeler]

I like to think anything mechanical can be fixed. But actions are steel and not all steel is created equally. I really pay attention to how every action measures out. They dont all measure up the same, it is related to that piece of steel. We know what happens when there is stress in barrel steel, what happens when there is stress in an action's steel and its attached to a barrel? Still in my experience, most can be fixed. This statement applies to any action not just Bat.

 

[ebb]

If the action has stress could it be stress releived like you would a barrel? I beleive that some buton rifled barrels are heat treated, and some are cryoed.

 

[Evan]

If the action has stress could it be stress releived like you would a barrel? I beleive that some buton rifled barrels are heat treated, and some are cryoed.

Stress relief causes movement. If you stress-relieve a part, you usually have to re-machine it or at least qualify it to ensure it is still in spec.

 

[ebb]

Evan you may be right, but I had 2 Remington barreled actions cryoed back when they first started doing it. Cryo could not make my factory barreled guns shoot better, like all the gun rags claimed but I don't think any thing moved much. But cryo may not do what it takes to fix an action, if indeed it is stress that is the reason they do live up to their brothers.

 

[jackieschmidt]

I took the action firing pin assy apart, and checked all the surfaces. Without the spring, the firing pin appears to fall with no binding. I smoothed as many of the surfaces of the shroud block as I could with a stone. Everything operates without ant noticeable bind.

The lugs are making good even contact.

So I put it all back together.

I bought a 33 inch long straight 1.250 1-9 twist 7 mm Krieger blank from a fellow Shooter off of the classifieds here. I chambered it up this morning in 7mm Geramo, which is a 6.6x55 Swede necked up to 7mm and Ackley Improved. The finished length is 32 inches.

Ed Bernabeo and Geramo are shooting this, it performs pretty good.

The Rifle is a Bat M in a Shehane Stock, Bix & Andy trigger, Krieger 7mm 1-9, mounting a 36x Valdada scope.

it’s just a fun gun assembled out of pieces I had laying around.

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