pengo Posted May 15, 2021 Report Share Posted May 15, 2021 Hi Chaps. I have a Tikka T3X Supervarmint in .223 with 1:8 twist and a 20" barrel, that I want to use on the land for general varmint shooting: Fox, Rabbit, Crow etc. The problem I've encountered is the best OAL using standard mag length is miles out of the lands and I don't want to single feed, so I was wondering if anyone can recommend a good accurate bullet and load data using Vhit 140, please, that fits in the magazine? Obviously any comments will be treated as advice only and I'll work within normal parameters of the data, but my main thing is the bullet brand, weight, type etc; then the best mag fit length to give me goo accuracy out to 300 yards. Thanks in advance for your input. Cheers. Paul Quote Link to comment Share on other sites More sharing options...
Richiew Posted May 15, 2021 Report Share Posted May 15, 2021 Hi there 2.26” is very close to mag length of standard tikka mags , I bought some WR MAGS from rifle mags . Uk . Which allow a much longer coal . I’m using Berger 55 , 60,73 grain bullets and Amax 52 grain all with viht 135 and using 25 grains for all except the 73s where it’s 22.5 g . Basically using the lapua web reloading page and knocking off a grain from max as a starting point , so could do the same for n140 . Quote Link to comment Share on other sites More sharing options...
Richiew Posted May 15, 2021 Report Share Posted May 15, 2021 Sorry forgot to say that it’s all in the bullet shape to how far the coal will be . Bergers allow upto 2.3” coal to the lands as they are tangent shapes but a secant shaped Amax is 2.213” cbto . This is with a tikka varmint 20” stainless . Quote Link to comment Share on other sites More sharing options...
Andrew Posted May 16, 2021 Report Share Posted May 16, 2021 Don't worry about the diatance from the lands. I have two Tikka T3 lites: one with a 1:8 twist, one with a 1:10. I load to data-specified OAL. Both shoot better than I can hold. Dont get caught up in the diatancer from the lands thing. Waste of time, really.~Andrew Quote Link to comment Share on other sites More sharing options...
markymark Posted May 16, 2021 Report Share Posted May 16, 2021 77gr TMK (69gr TMK also work very well but might as well use 77 if you have 1-8 twist) Mag length loaded these bullets are very tolerant to jump. CCI SRP, N140 24.2gr, 2.26" length 23gr was also excellent Job done. Quote Link to comment Share on other sites More sharing options...
simgre Posted May 18, 2021 Report Share Posted May 18, 2021 Was 69gn SMK and 25gns of N140 not the “industry standard” for straight pull ARs, not that long ago? Quote Link to comment Share on other sites More sharing options...
Richiew Posted May 23, 2021 Report Share Posted May 23, 2021 On 5/16/2021 at 8:35 AM, Andrew said: Don't worry about the diatance from the lands. I have two Tikka T3 lites: one with a 1:8 twist, one with a 1:10. I load to data-specified OAL. Both shoot better than I can hold. Dont get caught up in the diatancer from the lands thing. Waste of time, really.~Andrew If going by hornady manual a52g Amax standard load length is 2.230” this would be a 7 thou jam in my rifle t3x varmint, so I wasn’t happy with that so took off ten thou for a coal of 2.213” ( not as cbto as I got the numbers wrong ) . This makes cbto to be 1.8205” . Agree with not too much worry when there’s a jump as in 308 it’s massive but don’t fancy a jam with unknowns of pressure. It’s worth taking time to measure . Quote Link to comment Share on other sites More sharing options...
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