What’s the idea bullet and rifle twist? 1:9 seems to be common but not sure it performs best with lighter bullets.
What’s the idea bullet and rifle twist? 1:9 seems to be common but not sure it performs best with lighter bullets.
@kennethandmacy
2004 Triton 196
200 Merc
1199/898
What 6 mm? arc ? Creedmoore? 243? What are your intentions to shoot?
243 mostly coyotes, I didn’t get the groups I expected with factory 75 gr vmax from a Ruger American. 22” barrel 1:9 twist.
I picked up some 87gr vmax to reload today.
@kennethandmacy
2004 Triton 196
200 Merc
1199/898
My 243 shoots 55gr Nosler BTs just fine. I have a 9 twist as well. It may be the stock, scope, barrel, trigger or even the nut behind the trigger.
USN Retired
2020 Basscat Caracal
2020 Mercury 225 ProXS 4s
1:9 should be fast enough for about any lead bullet up to a high-BC 95gr or so. Faster twist is needed for heavier bullets, especially with high BC. Many 243’s are 1:10 twist, but there isnt really an accuracy downside Ive ever heard about to a faster than needed twist, doubt thats the culprit.
Last edited by MacIntosh; 01-12-2023 at 08:16 PM.
Well my ar is a 1/10 and runs the 75 vmax like a champ the 243 should work good 58-100 grain lead and 70-90 in copper
Mercury 250 proxs 2B115089
IMR 4064
Bullet 21XRS
Mercury Pro XS 250
It could be me, but the scope came off my cz 204 that shot extremely well when it was on there. I have some 4064 that I plan to use.
@kennethandmacy
2004 Triton 196
200 Merc
1199/898
What are you going to use it for? Varmints? Deer? Both?
@kennethandmacy
2004 Triton 196
200 Merc
1199/898
1-10 is has been the standard for the .243. 1-9 or 1-10 Will work fine for the lighter stuff and will work with 100gr hunting bullets if you ever want to do that. You could go with a slightly slower twist if you wanted to max out your velocity potential and were sure you would never use the heavy bullets but I would stick with the classic twist.
I run 95s and 100s out of my 243 for the kids. its a 1:9 and works great. 100 yards and one ragged hole
Ive had good results with 90 nosler BTs with H4350 and imr 4831
I read lightet bullets like 80 and 70grs like RL15 and Varget...i load my 243 for deer so i tend to shoot 100gr or 90s
2020 Skeeter ZX150
Try you some 85gr Sierra Game King BTHP's and about 43gr of IMR4831 (Start lower and work up to that). Haven't seen a 243 yet that wouldn't shoot that load well and that bullet performs great on animals.
@kennethandmacy
2004 Triton 196
200 Merc
1199/898
Do you reload?
@kennethandmacy
2004 Triton 196
200 Merc
1199/898