.270 WSM starting point

[emmagator]

Tikka T3 .270 WSM
I will be shooting 140 Accubonds and trying RL-17 . Any idea on where to start? Anyone have good luck with this combo?

[moses42ak]

I have the same set-up but have not loaded the Accu Bonds yet though I have them on hand. I would start at the bottom and work my way up. Mine shoots one ragged hole with various factory loadongs so I expect nothing less from handloads. I just hope I can get it with the Accu Bonds and possibly the Barnes TSX.

I normally start with the suggested COL and tweak it if I dont get the accuracy I'm looking for. From there it's starting over with a powder change. Part of the fun is shooting right?

[moses42ak]

BTW, here's the link to Reloader's recipes. Note that there is NO load data for Nosler bullets here: Alliant Powder - Reloader's Guide

[bigngreen]

With 140 Accubonds I started out at 50gr I think, a few grains below the R17 data for the 130's, it really sucked as I had pressure signs very early!!! Once you get over 130gr bullets the slower powders start giving you way better speed, with 110 gr TTSX or V-max R17 is very good but the heavier stuff you can get better performance with other powders like Retumbo, H1000, 7828.

[emmagator]

Originally Posted by bigngreen

With 140 Accubonds I started out at 50gr I think, a few grains below the R17 data for the 130's, it really sucked as I had pressure signs very early!!! Once you get over 130gr bullets the slower powders start giving you way better speed, with 110 gr TTSX or V-max R17 is very good but the heavier stuff you can get better performance with other powders like Retumbo, H1000, 7828.

Interesting. Ill just have to use different powders and find out what works then. I was just set on RL-17 because is said it was made specifically for short mags.

[bigngreen]

Originally Posted by emmagator

Interesting. Ill just have to use different powders and find out what works then. I was just set on RL-17 because is said it was made specifically for short mags.

Give it a try for sure but don't get locked in with it, I have yet to have a 270 WSM like it with heavy bullets but the 300 WSM digs R17. If you just want to run the WSM at regular 270Win velocities there are a lot of stuff that will work but if you want to get the most out of it try some of the slower stuff with the 140+gr bullets. I could get 100+fps more velocity with slower powders than with R17 and 4350 speed powders, accuracy was good but I was looking for speed also.

[Denny2277]

I've had great success with Winchester 780 Supreme with the 140gr Accubonds. I shoot a Browning A-Bolt 23in. barrel. I get around 3150fps useing 67.4gr(max load!)powder, Winchester brass, and WLRM primers. Groups about 1/2in at 100yrds.