the Sierra manual I quoted from is copy writed 1971......
Ive used this manual for loading charges for .38 and .357mag with current manuf. Unique without any problems.
if the Alliant Powder...
Type: Posts; User: atr
the Sierra manual I quoted from is copy writed 1971......
Ive used this manual for loading charges for .38 and .357mag with current manuf. Unique without any problems.
if the Alliant Powder...
for Jacketed bullets my Sierra manual gives
90 gr bullet 3.2 gr Unique min.....4.6 gr Unique max
115 gr bullet 2.7 gr Unique min.....3.5 gr Unique max
for Cast boolits my Lyman manual give
92...
versifier is right on about pressure being the factor which determines the load charge...
I used to reload for the .380 and you have to remember that the pressure also has to work the action. ...
I shoot both 257 Roberts and the 7x57 Mauser. If I had to choose only one then I would go with the 7x57. The 257 Roberts won't take down Elk (or bear) like the 7x57 will.
R5R and Versifier have the problem nailed for you.....its all in the crimping.
Just be aware that with a roll crimp (which is what I use) the case length is critical. Any variation in case...
I've not loaded for the .204 but I can tell you that all brass is different and will "work" differently in the dies. Even brass from the same manuf. if its from a different batch will feel different...
I use either a .257 Roberts with 117gr spitzer or a 7x57 with 120 gr. spitzer...my hunting is generally done with ranges from 75 yds to 250 yds. My 308 and '06 pretty much sit in the corner during...
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |