renaissance
Member
Reloading for my Benelli MP3S in .32 S&W L WC
This is a "New" ( to me) gun.
Using 100 grain Hard Cast Double Ended Wadcutter bullets
3.2 grains of Unique Powder
Seating to just barely under case rim
Lee .32 S&W Long 3 Die set
"Roll" Crimping ( and final resizing) with a Lee Factory Crimp Die ( .32 S&W )
( just enough { I thought} to "round" the sharp edge off of the outside of the case mouth)
They Shoot fine and VERY accurately.
Feed and run the Gun very well
Using data from "Steve's Pages":
3.2 should be just about mid range for this cartridge:
Quoting "Steve"
32 S&W Long
98 grain
Unique 3.0 > 3.8
100 Grain
Unique 2.5 > 4.0
However…………………….
I am getting Pressure Signs
"Flattened and Ringed Primers"
Some of each, some of BOTH and Some OK
Have checked my Load weight several times ( using both a RCBS 10/10 AND RCBS Electronic)
Once in a while ( not uncommon with Unique and RCBS Powder Measure ) I may get as much as 3.6
Most are at 3.2 > 3.3
This should be WELL within recommended limits
Could it be the CRIMP ??
I looked at some "Factory" .32 S&W Long Wadcutters
The outside edges of their cases looked "sharp"
Are Wadcutters NOT supposed to be Roll Crimped
I know that the .32 S&W Long headspaces on the rim
While I have your ear
Does anyone have any documentation of the MP3S?
Parts breakdown/specs??
Know of a source for parts ( especially the screw/bolt that tightens the "Split bottomed" "Sight Block" to the barrel
Or Magazines for same ( I have tried "Larry")
TIA
[email protected]
This is a "New" ( to me) gun.
Using 100 grain Hard Cast Double Ended Wadcutter bullets
3.2 grains of Unique Powder
Seating to just barely under case rim
Lee .32 S&W Long 3 Die set
"Roll" Crimping ( and final resizing) with a Lee Factory Crimp Die ( .32 S&W )
( just enough { I thought} to "round" the sharp edge off of the outside of the case mouth)
They Shoot fine and VERY accurately.
Feed and run the Gun very well
Using data from "Steve's Pages":
3.2 should be just about mid range for this cartridge:
Quoting "Steve"
32 S&W Long
98 grain
Unique 3.0 > 3.8
100 Grain
Unique 2.5 > 4.0
However…………………….
I am getting Pressure Signs
"Flattened and Ringed Primers"
Some of each, some of BOTH and Some OK
Have checked my Load weight several times ( using both a RCBS 10/10 AND RCBS Electronic)
Once in a while ( not uncommon with Unique and RCBS Powder Measure ) I may get as much as 3.6
Most are at 3.2 > 3.3
This should be WELL within recommended limits
Could it be the CRIMP ??
I looked at some "Factory" .32 S&W Long Wadcutters
The outside edges of their cases looked "sharp"
Are Wadcutters NOT supposed to be Roll Crimped
I know that the .32 S&W Long headspaces on the rim
While I have your ear
Does anyone have any documentation of the MP3S?
Parts breakdown/specs??
Know of a source for parts ( especially the screw/bolt that tightens the "Split bottomed" "Sight Block" to the barrel
Or Magazines for same ( I have tried "Larry")
TIA
[email protected]