Sellier and Bellot brass for reloadin in 303?
- Thread starter cdqxyy
- Start date
I've got about 18 cases left from a box of 20 factory rounds someone gave me at one time. I load them to ~80% maximum pressure and have had no issues. My No.1 Mk.3 is hard on brass like most Enfield's and the WW Super brass always dies on me within 1-3 firings (goes banana shaped or has case head separation.) The S&B brass has lasted as long as my FC or RP brass. It's still looking good after 4 firings.
The 2 cases missing from the 20 where lost at the range; they didn't fail.
I have also run S&B brass in my M96 Swedish Mauser and my Mosin to good effect. I've had the most reloads of them in my M96 and after I think 7 firings (annealed once after 5 firings) they are still looking good.
The 2 cases missing from the 20 where lost at the range; they didn't fail.
I have also run S&B brass in my M96 Swedish Mauser and my Mosin to good effect. I've had the most reloads of them in my M96 and after I think 7 firings (annealed once after 5 firings) they are still looking good.
I get about 5 FL sized reloads before I notice signs of head separation, S&B cases are pretty hard and work harden quickly IMO. BEWARE of Igman cases Ive had two full boxes where the primer hole is drilled off center and bent my decapping pin, take a penlight and have a peek before pooching your equipment
antiqueguy
CGN Ultra frequent flyer
- Location
- windsor ontario
wow you guys need to learn a thing or two about reloading for the .303
first off most are relying on the rim to head space dont the case likes to stay off of the bolt face when fired it moves back and forces it self onto the bolt face this causes case head streching.
to stop this a oring can be placed on the case just infront of the rim this will keep the case back onto the bolt face then when you fire the round it will fire form and then it will head space on the shoulder after this you neck size only this.i also like to anneal my cases every 3 or 4 reloadings
i use mostly cast reloads in my no4 mk 1 so there not too hard on brass with all this and becase of the cast reload ive gotten close to 30 reloads out of a case i also use nothing but prvi it match's the mk7 ball brass most of the modern day stuff has the cut infront of the rim brass like to flow into this over time
first off most are relying on the rim to head space dont the case likes to stay off of the bolt face when fired it moves back and forces it self onto the bolt face this causes case head streching.
to stop this a oring can be placed on the case just infront of the rim this will keep the case back onto the bolt face then when you fire the round it will fire form and then it will head space on the shoulder after this you neck size only this.i also like to anneal my cases every 3 or 4 reloadings
i use mostly cast reloads in my no4 mk 1 so there not too hard on brass with all this and becase of the cast reload ive gotten close to 30 reloads out of a case i also use nothing but prvi it match's the mk7 ball brass most of the modern day stuff has the cut infront of the rim brass like to flow into this over time
antiqueguy
CGN Ultra frequent flyer
- Location
- windsor ontario
the thick ness depends on your head space i forget what size im using now my gun is not too lose but lose enough to cause case head separation
i like my cast loads they dont beat up the gun too much and there real good on the brass the gun is been handed down the family since it was brought back
