For .303 British reloaders.

[sashi]

I'm just working up a load for the sierra 180gr pro hunter and RL15. I was testing 40gr to 40.5, and found some good groups, with my best showing up at 1/2" with 42 grs. Just built a box of these, and will have to get out and confirm this load. I have noticed this smle likes to be dirty. I spent a couple of day's cleaning this rifle and the groups opened up to 3 to 4 inches from loads that had been giving me 1 1/2". It's taken me a few boxes of ammo to get it dirty again and bring the accuracy back down. My cleaning for this gun is down to 1 quick swab with solvent, one dry wipe, and then oil.

 

[c.t.]

i have reloaded .303 brit.for about 30 years .123 150 180 174 grains bullets spitzer and round nose .
with good results .tried several powders h335 blc2 4895 4064 w748 w760 imr 4350 and h4350

very best for me is h414 with magnum primers as in hogdon reloading manual