58 Thompson Frankenboar

[Dirty Mike]

Well I went a little crazy and in a two week time period two Thompson big boars presented themselves one in near mint shape only fired 7 rounds and one that definitely had been used. I oiled up the nice one and set it in the safe while starting work on the shooter. It has minor pitting towards the end of the muzzle and had a broken stock. Within recent weeks I added peep, Davis Deerslayer Trigger all put into a Renegade stock I picked up. I've shot conicals and Prb outta it threw the crony and both group great

 

[Africa58double]

Ya buddy- I really like my .58 Big Bore and acquired an additional stock and Peep for it to do the same… plus a long range barrel. My peep is the Tc flip up tang site, As that will help with it’s trajectory. I like the 445gr Lee REAL Bullet. Double triggers and Peep certainly help the .58

 

[Dirty Mike]

Ya buddy- I really like my .58 Big Bore and acquired an additional stock and Peep for it to do the same. My peep is the Tc flip up tang site, As that will help with it’s trajectory. I like the 445gr Lee REAL Bullet.

I've made about 90 of the lee reals for it shot a handful and they do well I've put 615g conicals threw the chronograph
440 Lee reals
And prb threw it

 

[Africa58double]

What was charge and the Fps in the Crono?

 

[Dirty Mike]

I've played more with the prb and they shoot great the Lee's do well also. The 615 maxis lob like watermelons and pack a punch

 

[Dirty Mike]

What was charge and the Fps in the Crono?

All using 100 grn 777 2f
615 maxi 1180
440 Lee real 1480
.570 prb 1740
I'm gonna try again when it warms up

 

[Africa58double]

I took a few shots with .562 ball and .020 patchz- Not good. So I went to a .570 and .018 and was doing well enough with the open sites.

Yet the Lee 445gr was shooting nicely- even with 75gr of 2f- Thumps the shoulder a little. After 10 shots…. I prefer the PRB.

 

[Africa58double]

1740fps ?
Wow nice- that will reach out there a little

 

[Dirty Mike]

I took a few shots with .562 ball and .020 patchz- Not good. So I went to a .570 and .018 and was doing well enough with the open sites.

Yet the Lee 445gr was shooting nicely- even with 75gr of 2f- Thumps the shoulder a little. After 10 shots…. I prefer the PRB.

I have a .562 mold and a .575 mold haven't tried the .562 yet and couldn't even come close with getting a .575 in with a .15 patch. I ordered some .10 so we will see if they will fit. It shoots lights out with.570

 

[Dirty Mike]

1740fps ?
Wow nice- that will reach out there a little

Yes I was surprised as well. I'll do more testing when it warm up

 

[Africa58double]

That last gotta thump the shoulder

 

[Dirty Mike]

Not to bad with prb but you definitely know when it's shooting conicals

 

[Africa58double]

For sure!

 

[Dirty Mike]

For sure!

How were your groups with .562 prb?

 

[Africa58double]

Not good-4” at 50 yards

On a Side note, Why was a .58 Big bore with double triggers not a common production model, for that matter… a Flintlock version!

Regardless, The Single trigger original .58 Big Bore Is great. Nothing wrong with it, I just consider it a short range gun with open sites.

 

[Africa58double]

I can squeeze the Lee Real 445gr at 8Bhn into 2.5” at 50 yards with open sights. Yet that’s of a tailgate.

I need to get to a nice bench range and dial in a PrB

 

[Dirty Mike]

I'm sure one could make one a flint if you were able to get the breech plug off, screw on a 54 flint breech

 

[Africa58double]

I’d just bore out a Tc Flintlock to .58 instead of ruining a Tc Big Bore .58

Not all that many floating around.

 

[Grimord]

I’d just bore out a Tc Flintlock to .58 instead of ruining a Tc Big Bore .58

Not all that many floating around.

Thatswhat i deid. Took a sewer pipe .50 caliber flint lock barrel and had Bobby Hoyt bore it out to .58 with a 1/72" twist with round bottom rifling. With 85 grains of 3f it will shoot out the center of a 2" bull at 50 yards.

 

[Africa58double]

Ya - a .58 rounball barrel would be nice