Regards
John
7.5 gr Unique
Larry Gibson
“Deficient observation is merely a form of ignorance and responsible for the many morbid notions and foolish ideas prevailing.”
― Nikola Tesla
There's probably more data for that 200 gr SWC boolit than almost any other boolit. You can use the same data for the 185.
NRA Benefactor.
Lee 2nd Edition list loads for 320 and 310 with 200 gr:
Powder Start Vel Max Vel
320 4.7 888 5.1 958
310 3.7 827 4.0 892
3.8-4.3 N310 will give you an accurate, soft shooting load. May have to get a 10-12 lb. recoil spring to ensure function.
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 |