2f vs. 3f ( 1858 .44 )

Hylander · February 25, 2011, 04:59 PM

Can I get a run down on the actual deifferences between the two.
I have read that 3F will give higher Velocity and higher Pressure.
But just how much ?
Right now I'm useing 30gr. 3F 777, 5gr. over published Max.
Would it be benificial to the gun (less pressure) to run 30gr. 2F 777
But what kind of Velocity difference are we talking.
Could I run 35gr. 2F 777 to make up the Velocity difference without raising the pressure to much ?

wogpotter · February 25, 2011, 08:24 PM

You'd need to run a chronograph to get real data before making changes. Or reading pressures & velocities. That seem a tad over what I'd call an accuracy load. I'm assuming a steel frame here brass would call for a big reduction!

Having said that in a steel frame with an 8" barrel I run 28 Gr FFg or 27Gr FFFg in either Goex BP, or APP substitute with no measurable difference in velocity. I have no way of measuring pressure.

Most of these pistols have a marked preference for a charge weight, so personally I fiddled for accuracy, not maximum bang & velocity & having gotten preferred accuracy loads adjusted the fixed sights to shoot to POA with that specific load.

February 25, 2011, 04:59 PM	#1
Hylander Senior Member Join Date: August 13, 2008 Location: California Posts: 128	2f vs. 3f ( 1858 .44 ) Can I get a run down on the actual deifferences between the two. I have read that 3F will give higher Velocity and higher Pressure. But just how much ? Right now I'm useing 30gr. 3F 777, 5gr. over published Max. Would it be benificial to the gun (less pressure) to run 30gr. 2F 777 But what kind of Velocity difference are we talking. Could I run 35gr. 2F 777 to make up the Velocity difference without raising the pressure to much ? __________________ Today is my Best Day. Lincoln, Ca.

February 25, 2011, 08:24 PM	#2
wogpotter Senior Member Join Date: September 27, 2004 Posts: 4,811	You'd need to run a chronograph to get real data before making changes. Or reading pressures & velocities. That seem a tad over what I'd call an accuracy load. I'm assuming a steel frame here brass would call for a big reduction! Having said that in a steel frame with an 8" barrel I run 28 Gr FFg or 27Gr FFFg in either Goex BP, or APP substitute with no measurable difference in velocity. I have no way of measuring pressure. Most of these pistols have a marked preference for a charge weight, so personally I fiddled for accuracy, not maximum bang & velocity & having gotten preferred accuracy loads adjusted the fixed sights to shoot to POA with that specific load. __________________ Allan Quatermain: “Automatic rifles. Who in God's name has automatic rifles”? Elderly Hunter: “That's dashed unsporting. Probably Belgium.”