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Cheers Flyblown I have certainly not been as systematic as I could have been so far with the development for my .243 tho, I have tried 5 different projectiles but started working loads up from the...

Well I polked brushes and patches and things up the barrel a bunch of times, it may have been my technique but I got slightly different measurements each time but i averaged it out to be closer to...

[QUOTE=Flyblown;938019]Zero percent chance your .243 is a 1:14" twist if it is original.

Start again with the twist rate check buddy, find something that will work.

The history of the .243 Win...

Stamps on barrel

Oy Tikkakasi Ab
Made in Finland

More than happy to be corrected on barrel twist if ive cocked it up tho!

Cheers

Thanks heaps for that, I was concerned about using varmint projectiles on reds but the sierra sounds like its worth a try. I have been using H414 because I could get hold of any 2209 that I used for...

I posted earlier about finding out my twist rate, its an old tikka M55 not the sporter modle, 17mm barrel diameter. All the research I have done points at 1-14 but it could be 1-12 perhaps?
Cheers...

Hey all

More questions regarding .243 loads, can anyone give me any guidance on projectile weight range for a 1-14 twist 19" barrel ?
Have been trying a few different projectiles from 75-90 gr...