.243 AI / N160 / 75 Vmax / 87 V max???
- Thread starter Phil
- Start date
I cant help you with that powder but I am using h 414 with the 87g v-max and am having good luck with it. I haven't ran them across my chrno yet so I don't have any numbers for you. I just loaded some more up with rl 19 to test but haven't had time yet.
I've been shooting RL 19 and have fouling issue affecting accuracy. How is the H414 in this respect? (243 A.I.)
willy
willy
No prob with fouling but this barrel dosent seem to foul that much period. I had the same prob with r19 and 80g bts with a factory barreled 243 a couple of years ago.
Gary in MD
Gold $$ Contributor
Phil,
I'm using VV N160 in my 6mm AI (12twist) and it is extremely clean burning and accurate. I'd have to check my chrono records but I believe I was getting 3700 to 3800 fps depending on the exact charge with the 75 grain Vmax. That bullet is really accurate for a varmint bullet and it will really bust a ground hog.
Gary
I'm using VV N160 in my 6mm AI (12twist) and it is extremely clean burning and accurate. I'd have to check my chrono records but I believe I was getting 3700 to 3800 fps depending on the exact charge with the 75 grain Vmax. That bullet is really accurate for a varmint bullet and it will really bust a ground hog.
Gary
I'm burning 51.7grs of Re#23 behind a 87gr V-Max and getting 3600 ,BBL is pathetic .
AckleymanII
Gold $$ Contributor
OK, hunting partner have had a dozen or more each Hart 12 twists with zero freebore. Win 760 is our powder, and in a 28" barrel, 48.5g is 3850 fps, rem 7/08 cases neck turned then necked down, CCI 250 primers with 70g Nosler Ballistic tips, 70g Speer TNT, 69g Bergers, 70g Sierra Blitz kings touching the lands.
50.3g of Win 760 is a max load in our rifles with this 12Twist Hart barrels and Win mag primers will get you 4030 fps out of a 29" barrel, very low extreme spread and from 47-50.3g, we are shooting bug holes.
We shoot either Max heavy varmint contours or straight unturned blanks.
We set back the barrels at 1800 rounds, and the leade growth at that point is 0.070-.100 depending on how we torched the barrels on hot p. dog towns. Usually 3 set backs on unturned blanks, then the 4th is a 6 BR with zero freebore.
Your lot number of powder may be different than ours, and H414 is .5g slower than 760. AA2700 is a good powder also, same powder charges.
We found that velocity really drops off on 85-87g bullets to 3500-3550 with win 760.
The sierra blitz king is the most explosive 70g bullet, and sierra really does a great job with this bullet in quality control.
50.3g of Win 760 is a max load in our rifles with this 12Twist Hart barrels and Win mag primers will get you 4030 fps out of a 29" barrel, very low extreme spread and from 47-50.3g, we are shooting bug holes.
We shoot either Max heavy varmint contours or straight unturned blanks.
We set back the barrels at 1800 rounds, and the leade growth at that point is 0.070-.100 depending on how we torched the barrels on hot p. dog towns. Usually 3 set backs on unturned blanks, then the 4th is a 6 BR with zero freebore.
Your lot number of powder may be different than ours, and H414 is .5g slower than 760. AA2700 is a good powder also, same powder charges.
We found that velocity really drops off on 85-87g bullets to 3500-3550 with win 760.
The sierra blitz king is the most explosive 70g bullet, and sierra really does a great job with this bullet in quality control.
AckleymanII
Gold $$ Contributor
Also, I never full length sized the brass, nor did hunting partner at 48.0-49.0g of 760 with CCI250 and 70g what evers.
Keith is dead on the money. Made short work for me and a 26" Shilen 243ai throated for 70 gr. Sierra. I came across h414 8 pounders marked down to $149 and rolled with it. 48 gr 15 thou jump at 3760fps with my chamber/barrel. (10tw. Also wanted to be able to shoot 85+ on long range dmap for doe whitetail). The Sierra 70 blitz are reeeeeediculous. I'm having a great time with this one thanks to ackleyman.
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