Scotch_egg Posted July 11, 2009 Report Share Posted July 11, 2009 Just been out with my browning A-bolt with new barrel. Its the first time I've managed to get out for load development due to playing with my TC encore .243 and having too much fun. But seeing as the fallow season is coming up thought I had best get the deer rifle up and running. Now this is the first time I have measured group size. Excuse the caliper the battery has run out. Its reading .4 centre to centre on the 3 shot group. Have I measured this right? The lower hole has 2 shots in one. This was shot off bi-pod resting on a style over a dry stone wall. I think its minute of deer at least Link to comment Share on other sites More sharing options...
Vermincinerator Posted July 11, 2009 Report Share Posted July 11, 2009 Scotch, get a new battery first mate and then identify the widest two shots of your group, measure from the outer edge of one shot to the opposite outer edge of the other, record the measuremant and subtract one bullet diameter this will give you your group size For example: lets say edge to edge is .750" minus .243 = .507" centre to centre. Ian. Link to comment Share on other sites More sharing options...
Ronin Posted July 11, 2009 Report Share Posted July 11, 2009 You can either use centre to centre or use total outside group size minus ONE calibre. Or 1.000 - .308 = .692" (for example) There is a programme available that I use called On Target, its free and works very well, but you need to scan your target onto a computer to use it. This is what you get when you use it Link to comment Share on other sites More sharing options...
Ronin Posted July 11, 2009 Report Share Posted July 11, 2009 Looks like Ian and I were typing at the same time!! Link to comment Share on other sites More sharing options...
Scotch_egg Posted July 11, 2009 Author Report Share Posted July 11, 2009 cheers guys, new to this measuring. I'll get a battery in the morning and give it another go. D'oh. Not got a scanner so can't use that programme, looks good though. Just got to get some rounds loaded with the load so I can try for some better groups. Link to comment Share on other sites More sharing options...
Scotch_egg Posted July 11, 2009 Author Report Share Posted July 11, 2009 Right just to clarify, I have quickly measured the outside to outside edge at .6 on the caliper without battery. So on this measurement my calculation is edge to edge .6 minus one bullet @ .284 (7mm) = .316 Have I understood correctly? cheers Scotch Link to comment Share on other sites More sharing options...
Ronin Posted July 11, 2009 Report Share Posted July 11, 2009 An a+ student Link to comment Share on other sites More sharing options...
Scotch_egg Posted July 11, 2009 Author Report Share Posted July 11, 2009 Never been an academic hence my current role........... cheers Ronin Link to comment Share on other sites More sharing options...
kip270 Posted July 12, 2009 Report Share Posted July 12, 2009 Glad i'm no Fallow!!!!!!!!!!!!! They better look out with your rifle shooting like that. Good shooting Link to comment Share on other sites More sharing options...
Jay Foxing Posted July 12, 2009 Report Share Posted July 12, 2009 Scotch, You don't need a scanner to use 'On Target', a photo of your group loaded into your computer off a digital camera or phone will do the job just the same. And 'On Target' is a free download, give it a go. All the best, Jay. Link to comment Share on other sites More sharing options...
Scotch_egg Posted July 12, 2009 Author Report Share Posted July 12, 2009 Thanks for the comment Kip. Jay my lap top is on the blink and won't download anything at the minute. Got a new one on oder so will give it a go when it arrives. Thanks for the info. Link to comment Share on other sites More sharing options...
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