Sakoboomstick Posted August 18, 2009 Report Share Posted August 18, 2009 just after some more opinions to cement my gut feeling, in a 243 AI barrel, only planning to shoot between 68 and 87 gn bullets, what twist and groove would suit these weights to get the most out of its potential........ Link to comment Share on other sites More sharing options...
17 Rem Posted August 19, 2009 Report Share Posted August 19, 2009 I have a 1 in 10 on my .270 necked 243AI and currently use 68 grain bullets. My plan has always been to shoot nothing other than 68 grain Bergers/ G and C's and 87 grain Hornadys. My barrel is a sporter weight Pac-Nor, fitted by Dasherman to a Sako A2 action. It's pillar bedded in a Bell and Carlson synthetic stock and is shooting 1/4" groups during fireforming. I'm delighted with it. Link to comment Share on other sites More sharing options...
Berger Posted August 19, 2009 Report Share Posted August 19, 2009 just after some more opinions to cement my gut feeling, in a 243 AI barrel, only planning to shoot between 68 and 87 gn bullets, what twist and groove would suit these weights to get the most out of its potential........ 12 twist will be perfect,just make sure who ever chambers your barrel uses the correct reamer as you dont want a long throat for heavy bullets as you wont have enough bullet in the case when using 68 gr Link to comment Share on other sites More sharing options...
Sakoboomstick Posted August 19, 2009 Author Report Share Posted August 19, 2009 thanks for that, would a 3 groove or higher be suitable? Link to comment Share on other sites More sharing options...
Berger Posted August 19, 2009 Report Share Posted August 19, 2009 thanks for that, would a 3 groove or higher be suitable? dosent matter what ever you can get or what ever you fancy Link to comment Share on other sites More sharing options...
1967spud Posted August 19, 2009 Report Share Posted August 19, 2009 pete what do you think a 1:10.5 would be ok for Link to comment Share on other sites More sharing options...
Berger Posted August 19, 2009 Report Share Posted August 19, 2009 pete what do you think a 1:10.5 would be ok for 95 gr would be a safe bet may do 100 gr if your lucky Link to comment Share on other sites More sharing options...
1967spud Posted August 20, 2009 Report Share Posted August 20, 2009 95 gr would be a safe bet may do 100 gr if your lucky 87's should be ok then Link to comment Share on other sites More sharing options...
Berger Posted August 20, 2009 Report Share Posted August 20, 2009 87's should be ok then bang on Link to comment Share on other sites More sharing options...
1967spud Posted August 20, 2009 Report Share Posted August 20, 2009 bang on cheers pete Link to comment Share on other sites More sharing options...
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