Thread: What Have You Loaded Today

Originally Posted by AMac

I can just about get 3000fps with the 162eldm - my ballistic app shows the 180’s “over taking” the 162’s by 150m out to 500 shooting ever so slightly flatter and delivering 44% more energy and a lot less wind drift.
Was quite surprised at how much difference there is between the two.

Yip can confirm it works well from 10meters to 1000 one rifle shooting it at 2900 and the other 2930 about to load for a new barrel this afternoon

Originally Posted by Kelton

Yip can confirm it works well from 10meters to 1000 one rifle shooting it at 2900 and the other 2930 about to load for a new barrel this afternoon

I only loaded one round with 65 grains just to see and it produced 2923 bolt opened easily etc.
But I thought 2880 will be good enough for now.

Originally Posted by AMac

I only loaded one round with 65 grains just to see and it produced 2923 bolt opened easily etc.
But I thought 2880 will be good enough for now.

Yea that’s plenty goes to show the difference in chambers huh

Originally Posted by Kelton

Yea that’s plenty goes to show the difference in chambers huh

Yeah and action length mine is based on a T3 set up with a long throat so COAL is 3.125” the Greg Dooley articles on the PRC in his magazine had the saami coal at 2.825”

I found a good article by Brian Litz on the benefits of this “In fact, the extra powder you can add to a cartridge with the bullet seated long will allow you to achieve greater velocity at the same pressure than a cartridge with a bullet seated short.” “After all, when you seat the bullet out longer and leave more internal case volume for powder, your effectively making the cartridge into a bigger cartridge by increasing the size of the combustion chamber.”

My 7 saum is not far off a 7 prc with a 20” barrel velocity wise.

Gone to harder ADG brass from norma 300 saum necked down.

I think barrels make a difference too some just seem faster.

Originally Posted by AMac

Yeah and action length mine is based on a T3 set up with a long throat so COAL is 3.125” the Greg Dooley articles on the PRC in his magazine had the saami coal at 2.825”

I found a good article by Brian Litz on the benefits of this “In fact, the extra powder you can add to a cartridge with the bullet seated long will allow you to achieve greater velocity at the same pressure than a cartridge with a bullet seated short.” “After all, when you seat the bullet out longer and leave more internal case volume for powder, your effectively making the cartridge into a bigger cartridge by increasing the size of the combustion chamber.”

My 7 saum is not far off a 7 prc with a 20” barrel velocity wise.

Gone to harder ADG brass from norma 300 saum necked down.

I think barrels make a difference too some just seem faster.

Both the ones I load for are 20” on short actions seated at 2.935 I have friends with xm actions with reloader 26 they pressure out the same the only effect on velocity is barrel length the long loaded rounds are better if using 2217 I don’t believe in faster barrels just tighter chambers pushing the pressure up you’ll find your 64.5 grains will be near the same pressure as my 62 grains