Hi folks,
I have a bit a quandry. I have been working up a non-tox load for my 257 Roberts.
My current choices are 100 gr Nosler E-Tip and 100gr Peregrine VLR4.
Well I did some el rapido load development before heading out last weekend and I lucked out on a load with the Peregrines that gave a group of 17mm centre to centre with 4 shots so stuck with that. Anyway, I had some poor on game performance with the Peregrines so I have decided to persist with the E-Tips.
Now, I shot a not bad group with one predicted node for the E-Tips (42.5 gr RS60)
But given the smutty cases,
I left the E-tips at home.
So, what do I do to tighten that group up?
I can:
Try a different powder charge (tried next predicted node up but was about a 3" group, lots of dispersion)
I could try a different powder - I have Viht N150 and Ramshot Hunter on hand
I could keep the RS60 powder and use a magnum rifle primer
Advice welcomed.
Scrummy
I have a bit a quandry. I have been working up a non-tox load for my 257 Roberts.
My current choices are 100 gr Nosler E-Tip and 100gr Peregrine VLR4.
Well I did some el rapido load development before heading out last weekend and I lucked out on a load with the Peregrines that gave a group of 17mm centre to centre with 4 shots so stuck with that. Anyway, I had some poor on game performance with the Peregrines so I have decided to persist with the E-Tips.
Now, I shot a not bad group with one predicted node for the E-Tips (42.5 gr RS60)

But given the smutty cases,

I left the E-tips at home.
So, what do I do to tighten that group up?
I can:
Try a different powder charge (tried next predicted node up but was about a 3" group, lots of dispersion)
I could try a different powder - I have Viht N150 and Ramshot Hunter on hand
I could keep the RS60 powder and use a magnum rifle primer
Advice welcomed.
Scrummy