Searching for an knowledge or input on a 300 RUM with a 1-8 twist barrel. Pros cons ext. Been shooting a Rum for years with a 1-10 twist, and came across another one that has a 1-8 twist. Seemed odd to me to have a 1-8. I am assuming it must be designed for 220 plus grain bullets?
300 Rum barrel twist
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J E Custom
Well-Known Member
The 1 in 8 is for the heaviest bullets and doesn't do well with the 165 and 180 class bullets. (Recommended for all but the extreme distances).
1 in 10 is the best all round twist for the RUM in my opinion.
J E CUSTOM
1 in 10 is the best all round twist for the RUM in my opinion.
J E CUSTOM
So I prefer to shoot 200 to 220 grain, do you think they would still stabilize well, or do you need to go heavier? Thanks
Blackdirt Cowboy
Well-Known Member
I'm shooting 230 grain Bergers in my 300 RUM. It's a 10 twist and they stabilize just fine.
If you're going to really stretch it out with heavy bullets(225-230gr) 1:9 will do you well. 1:8 twist is something Hornady has pushed with the 300 prc, which I believe will lean on their heavy(230-250gr) atip bullets. I bought an 8 twist bartlein rem varmint contour barrel planning on going that route, however I went 1:9 on the build. I shoot 300 norma improved which equals rum velocities. If you want to shoot 230s to 1000y go 1:9, if 215s is your game 1:10 will do the trick. Some bullets will blow up due from too much twist and velocity, so select your twist and fodder wisely.
I know a guy who went with an 8 on a project rifle in a 28-30 nosler. He's highly experienced and is having some issues with it. He thinks it's over twisted for 215's.
A 9 or 10 would likely be better suited for you.
A 9 or 10 would likely be better suited for you.
Hes probably pushing 300,000 rpm's
Comes down to which bullets yer shooting. My factory 300 is 1:10 and is very accurate with 180 grn Accubonds. My long range 300 Rum is 1:9. I planned to shoot Berger 230's with it and it was a perfect match. Not sure a 1:8 is going give you any benefit unless someone is making a 250 grn or bigger bullet in 30 cal...
Berger has the new 245 eol, and Hornady has the 250s. Badlands precision has their new 215gr super bulldozer that needs 8 twist as well. There are options out there, but in my opinion they need a lapua improved case to push em to get the ballistic advantage, over the lighter/faster(215-230gr) options.
Scalloper
Well-Known Member
Over the years I have always felt factory rifles have to slow twist for my liking and conditions. I shoot mostly at or very near sea level. I just built a 300 RUM with a 1-8 twist. I shoot 210 VLDs. I have a 28" barrel with a break. I am very pleased to say the least.
dfanonymous
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Yep. If not shooting through trans, you're just adding more drift, and limiting your bullet choices in which designs/construction you can run through said barrel.
freddiej
Well-Known Member
I personally love the 1:8" twist barrels. I use 190 grain VLD slugs and up with a 1:8" twist. I have the empirical evidence to back up my preferences in twist rates.
I am not here to start an argument or make people butt hurt. I have the logs of my rifles to back up my opinions. if you want to shoot a slug over 190 grains, just go 1:8". if you like to shoot 180 grain slugs or lighter then use 1:10" if I use the Berger 215's I absolutely shoot them better in a 1:8" twist barrel. if I am sending a 175 Berger VLD hunter down range I have such better accuracy with a 1:10" twist barrel.
now I go back to my e-mail and get back to my day.
later Y'all.
I am not here to start an argument or make people butt hurt. I have the logs of my rifles to back up my opinions. if you want to shoot a slug over 190 grains, just go 1:8". if you like to shoot 180 grain slugs or lighter then use 1:10" if I use the Berger 215's I absolutely shoot them better in a 1:8" twist barrel. if I am sending a 175 Berger VLD hunter down range I have such better accuracy with a 1:10" twist barrel.
now I go back to my e-mail and get back to my day.
later Y'all.
