charles daly 500 12ga 2-3/4 to 3" mag.

eastbank · June 2, 2019, 03:11 PM

I have a imported Charles daly 500 in 12 ga 2-3/4" that I would like to lenthen the chambers to 3" mag. it was made by miroku in japan and looks just like my miroku made browning double barrel 3", would it be safe to have it done?

Don Fischer · June 2, 2019, 05:51 PM

I used the same gun for years and then somehow it came up missing and my son got one just exactly like it! :-)

jaguarxk120 · June 2, 2019, 07:24 PM

Why do you want to make the chambers three inch?

Virginian · June 2, 2019, 10:27 PM

Check first to make sure the chambers aren't already 3". It is not at all uncommon. If you do not know how to do it correctly, pay a real gunsmith to check. I would carefully check the external barrel dimensions against a 3" chambered model, and if they are close, as within thousandths, I would do it if I wanted to. You will probably get some scaredy cat advice against this, but I am a retired gunsmith and lengthened many chambers with no ill effects through the years.
Charles Daly had relabelled guns from a variety of manufacturers over the years, and the Mirokus were some of the best.

eastbank · June 3, 2019, 04:59 AM

I would like to use it for spring turkey season, where shots can come from 45-50 yards down to 10-15 yards. I will have the right modified barrel opened up to imp cyl if the 3" rechambeing can be safely done.

jaguarxk120 · June 3, 2019, 07:08 AM

SAMMI lists the max. operating pressures the same for 2 3/4 and 3 inch
shells. the only concern is barrel wall thickness over the area at
the end of the three inch chamber.

FITASC · June 3, 2019, 07:52 AM

Many a turkey has been killed with 2-3/4" ammo

June 2, 2019, 03:11 PM	#1
eastbank Senior Member Join Date: February 7, 2008 Location: pa. Posts: 2,450	charles daly 500 12ga 2-3/4 to 3" mag. I have a imported Charles daly 500 in 12 ga 2-3/4" that I would like to lenthen the chambers to 3" mag. it was made by miroku in japan and looks just like my miroku made browning double barrel 3", would it be safe to have it done?

June 2, 2019, 10:27 PM	#4
Virginian Senior Member Join Date: February 11, 2012 Location: Williamsburg, Va. Posts: 1,528	Check first to make sure the chambers aren't already 3". It is not at all uncommon. If you do not know how to do it correctly, pay a real gunsmith to check. I would carefully check the external barrel dimensions against a 3" chambered model, and if they are close, as within thousandths, I would do it if I wanted to. You will probably get some scaredy cat advice against this, but I am a retired gunsmith and lengthened many chambers with no ill effects through the years. Charles Daly had relabelled guns from a variety of manufacturers over the years, and the Mirokus were some of the best. __________________ What could have happened... did.

June 3, 2019, 07:52 AM	#7
FITASC Senior Member Join Date: December 6, 2014 Posts: 6,441	Many a turkey has been killed with 2-3/4" ammo __________________ "I believe that people have a right to decide their own destinies; people own themselves. I also believe that, in a democracy, government exists because (and only so long as) individual citizens give it a 'temporary license to exist'—in exchange for a promise that it will behave itself. In a democracy, you own the government—it doesn't own you."- Frank Zappa

June 2, 2019, 05:51 PM	#2
Don Fischer Senior Member Join Date: March 2, 2017 Posts: 1,868	I used the same gun for years and then somehow it came up missing and my son got one just exactly like it! :-)

June 2, 2019, 07:24 PM	#3
jaguarxk120 Senior Member Join Date: February 28, 2008 Location: Michigan Posts: 2,619	Why do you want to make the chambers three inch?

June 3, 2019, 04:59 AM	#5
eastbank Senior Member Join Date: February 7, 2008 Location: pa. Posts: 2,450	I would like to use it for spring turkey season, where shots can come from 45-50 yards down to 10-15 yards. I will have the right modified barrel opened up to imp cyl if the 3" rechambeing can be safely done.

June 3, 2019, 07:08 AM	#6
jaguarxk120 Senior Member Join Date: February 28, 2008 Location: Michigan Posts: 2,619	SAMMI lists the max. operating pressures the same for 2 3/4 and 3 inch shells. the only concern is barrel wall thickness over the area at the end of the three inch chamber.