You asked:
1. What is the COL
2.980 to 2.989, average 2.985 inches.
2. Does the manual show pressure data for each load?
No. This statement is made:
"This load data was fired up to the SAAMI maximum average pressure (MAP) to 51,000 psi".
3. TSX, or TTSX (plastic tip?)
TSX Boatail - no plastic tip (part number 28444)
4. Water capacity and length of several cases fired in my gun.
I will have trouble with that, because both of my scales are balance beam, and have small bowl shaped receptacles for powder, i.e., it will be difficult to stand a water filled case upright in the powder receptacle. Maybe I can just fill a case with water, then dump the water out of the case into the powder receptacle.
All I can tell you right now is that the cases are Rem-Peters, while the load manual calls for Winchester.
Other manual data, FYI
trim length, 2.225 - I complied with that spec in my case prep.
Primer, Federal GM210M - does that mean "magnum", or "Match" Fed primers? Or Magnum and Match?
I used Win WLR, i.e., standard Win Large Rifle, and CCI #200 Large Rifle. The CCI's gave me from 4 to 9 fps greater velocities than the WLR's.
barrel length, 24", Krieger
My rifle - 23", DuBiel Arms Co. (Sherman, TX, from 1978 to 1992, IIRC)
Another FYI:
I went to
www.reloadersnest.com and pulled up "Load 10303 in caliber 7 X 57 Mauser, which states -
using a 140 gr Nosler Partition, 49.5 gr of IMR 4350, in a 24 inch custom Lilja barrel, a velocity of 2,901 fps was achieved and a 0.75 inch 3 shot group was made!!!!!! Comments?
All I can think of is that the Partition is a much shorter bullet, due to the lead components, resulting in the shank not taking up as much room, thereby allowing more powder capacity. But, 49.5 gr is a LOT of IMR 4350, IMO.