My wadcutter mold is 160 gr
- Thread starter johnnyjr
- Start date
JWFilips
Well-Known Member
Johnny,
It depends on how deep you seat the wad cutters! Many wad cutters are seated flush with the case neck. The "wad cutter loading info" is based on this depth. I would think if you are going to use the 160 SWC cutter info you need to use that given OAL for the Wad cutters, Otherwise there could be too much pressure.
Just my thoughts; let's see what the other say
It depends on how deep you seat the wad cutters! Many wad cutters are seated flush with the case neck. The "wad cutter loading info" is based on this depth. I would think if you are going to use the 160 SWC cutter info you need to use that given OAL for the Wad cutters, Otherwise there could be too much pressure.
Just my thoughts; let's see what the other say
fiver
Well-Known Member
well.
this sounds like a simple question..s.
but in reality this is actually where the rubber meets the road when it comes to hand gun loads.
JW and Ben have you on the right track with the advice to use the amount of room left in the case to guage/gauge whatever,, whether you can use the data from another bullet or type of bullet.
it isn't always about weight, how much in or out is a bigger influence especially with the faster powders you use in a pistol.
if you were asking and wanting to use something like clays or titegroup i wouldn't say anything but hell no, neither of those powder do well in small spaces.
extremely unwell, and will go so far as to spike pressures about 3 times higher than you'd think possible from nothing other than the smaller space available to them.
Unique not so much.
as far as using Jacketed data?
maybe.
quite often lead bullets are more efficient at blocking the gas behind them so show higher pressure levels than jacketed bullets do.
their pressure mapping will be higher until the point where the pressure drops off faster because the engraving pressure and barrel friction are lower.
so the answer basically comes down to burn speed of the powder, it's base ingredients, and how much below maximum the jacketed load is,,, in other words not really 100% predictable without testing.
then in the next case it doesn't matter enough if you use one or the other...
this sounds like a simple question..s.
but in reality this is actually where the rubber meets the road when it comes to hand gun loads.
JW and Ben have you on the right track with the advice to use the amount of room left in the case to guage/gauge whatever,, whether you can use the data from another bullet or type of bullet.
it isn't always about weight, how much in or out is a bigger influence especially with the faster powders you use in a pistol.
if you were asking and wanting to use something like clays or titegroup i wouldn't say anything but hell no, neither of those powder do well in small spaces.
extremely unwell, and will go so far as to spike pressures about 3 times higher than you'd think possible from nothing other than the smaller space available to them.
Unique not so much.
as far as using Jacketed data?
maybe.
quite often lead bullets are more efficient at blocking the gas behind them so show higher pressure levels than jacketed bullets do.
their pressure mapping will be higher until the point where the pressure drops off faster because the engraving pressure and barrel friction are lower.
so the answer basically comes down to burn speed of the powder, it's base ingredients, and how much below maximum the jacketed load is,,, in other words not really 100% predictable without testing.
then in the next case it doesn't matter enough if you use one or the other...
358156 hp
At large, whereabouts unknown.
358432 has a crimping groove, and the nose of the bullet protrudes perhaps 5/16 or more outside the case mouth. I have a couple of them and I've been using standard 158-160 gr 38 Spl data, and I don't load them hot at all. It's a very versatile bullet and I know guys who shoot them as a competition bullet for action shooting. I believe it was originally introduced in 1931 or so.
johnnyjr
Well-Known Member
No. 38 cases.
358156 hp
At large, whereabouts unknown.
Back in the olden days Ideal/Lyman used to list data for handgun calibers in groups, i.e. similar weight and design bullets were somewhat lumped together. Ideal Handbook #40 lists 358432 with 358311 in 38 Spl data for standard pressure loads. The two surviving powders in this data to this day are Bullseye & Unique, but data for 358156 is similar in std pressure loads only.
Well, I'd be careful due to reduced case capacity of the wadcutter.
But, I have a Lyman 358395 HB wadcutter that I've tested with 6.0 grains of Unique at 1218 FPS in a .357 Ruger with no signs of pressure. Pretty hot.
Now I have three versions of this bullet and this was the heavy that weighed 165.5 grains. You have to realize that this is a HB wadcutter which gives more case capacity and in a .357 Magnum chamber which gives freebore.
I'd choose the starting load for the heaviest full (non-hollow based) wadcutter I could find and start with five and take it from there. Chrony would be nice if available./beagle
But, I have a Lyman 358395 HB wadcutter that I've tested with 6.0 grains of Unique at 1218 FPS in a .357 Ruger with no signs of pressure. Pretty hot.
Now I have three versions of this bullet and this was the heavy that weighed 165.5 grains. You have to realize that this is a HB wadcutter which gives more case capacity and in a .357 Magnum chamber which gives freebore.
I'd choose the starting load for the heaviest full (non-hollow based) wadcutter I could find and start with five and take it from there. Chrony would be nice if available./beagle
358156 hp
At large, whereabouts unknown.
That's how express rifle calibers worked too. Not all hollow bases designs are actually designed to be able to expand.