243ai 8twist

[bobcat30]

looking at getting a 26" shilen select match stainless 243ai barrel from jim briggs. It is an 8 twist can i shoot lighter bullets thru it will they come apart? or am i limited to the heavier bullets with the 8 twist?

[sinman]

you will be able to shoot most of them, you might not be able to push the 55gr bullets to the max though

[dcloco]

55 gr VMax work fine at 4000+ in my 6mm AI. Have not pushed them faster than that though.

[bobcat30]

so should i do 6mmai or 243 ai the floor is open? have bunch 243 brass sonce rifle is 243 win now. But could build custom 6mm ai and leave 243 alone for wife. i like the idea of 4000 fps but in same respect would use more for deer antelope than varmits since i have a triple duece and 204 and 17 rem custom

[dcloco]

I price what to build on what I have on hand - dies, brass, bullets, powder, etc.

Same type of question - buy/build a 338 Lapua or 338 RUM? RUM wins, hands down, just on the cost of brass alone. Go with a touch longer barrel on the RUM, and it does EVERYTHING the Lapua can do.

[sinman]

im a 6mm rem fan but with the Lapua brass the 243ai is the way to go, Lee makes 243ai dies for cheap too.

[savageboy]

Good article on 6mm rem ackley VS 243 AI on 6mmbr.com. See link
http://www.6mmbr.com/gunweek042.html

[Blue Avenger]

dies are cheaper for the .243AI, But I tend to like the .244AI better. I have both and have not gotten either one totally dialed in yet.

[bobcat30]

so if i use the lee ackely dies does that eliminate fire forming? may be a dumb question but guess a guy doesnt know if he doesnt ask. This will be my first wildcat so diggin for all the info i can get. Also is there a good wildcat cartridge book for a good read out there?

[sinman]

no you still need to fireform, the only AI factory stuff I have ever seen was 280ai ammo and I think brass too

[bobcat30]

Is lapua gonna be the best brass to use for fire forming? Also is there a specific barrel manuf that i should look at for barrel? What about twist? shoot varmits to deer to speed goats to paper.

[bobcat30]

also whats the diff betwwen ratchet rifling and reg rifling? is there a benefit?

[bobcat30]

was told the fast twist could destruct hollow points in flight? Such as my 8 twist brux suppose one could tame down load to support the twist i guess. Just have a bunch of 70 and 75 gr hollow points and thought id use em up for fire forming brass. Any thoughts?