They dont make them like that anymore. You are fortunte to have them.What is your load for RL-17 if you do not mind sharing?
Thanks, yes, worked up some very nice loads.
Max safe proof loads in my rifles:
New old stock W-W and R-P brass cases
300gr A-Frames, Partitions and BBW #13 solids
81grs RL-17
CCI-250 or FED-215 primers
Velocities:
300gr A-Frames and Partitions 2680 fps
300gr CEB #13 solids 2700 fps
Extremely accurate
Cases fall from chamber
Easy extraction
Primer pockets reamain tight after four firings of five segregated test cases.
I have found no difference in velocity OR accuracy using both W-W and R-P brass as well as either FED-215 or CCI-250 primers.
With these max safe test loads I placed rifles and ammunition out on a 20' JD batwing cutter to bake in 100 degree heat, the ammo and rifles were so hot you could barely hold them in your hands to load and fire the rifles, I have no testing equipment and these loads were extrapolated by the burn rate of RL-17 as compared to the 4350's and 760 powder, RL-17 is not a temp stable powder, hence the extreme heat test measures.
All that said, and after safe testing was done, with also getting extreme accuracy I backed all loads down too:
>>>>>>78.5grs RL-17<<<<<<
{All 300gr bullets now clock 2600-2625 fps with the same great accuracy.}
With RL-17 now largely unavailable, I worked up new loads with 6.5 Staball powder in a 115 count old last load out bag of W-W brass cases.
I FL sized them, cleaned primer pockets, ran through tumbler to clean, trimmed all to uniform length, then ran them through the Ugly Annealer.
This load on five times fired W-W brass:
300gr Partitions
80grs 6.5 Staball
FED-215's
VEL 2588 fps
Same extreme accuracy
VERY temp stable, dense, easy loading ball powder.
These are my utility loads for the great 375 H&H's as the brass will be thrown away after they are hunted out and fired, six firings is more than enough to get your moneys worth on any higher pressure hunting cartridge cases, I even gave 'em a little extra love by putting blue green primer sealant over the primers in case that old fixed 4X scoped Model 70 Winchester ever made it's way to Alaska for a great coastal bear hunt ; ]