Printable View
Gidday Folks - I'm pondering a fast twist 243 .
. after a difficult 6mm CM experience that I'd like to set behind me.
A fast high BC 6mm projectile still ticks a lot of my boxes - and I see there is Criterion fast twist barrel on offer.
So tell me about your experiences with Criterion barrels and fast twist 243's
Cheers
nah..let ME ask YOU a couple or four questions so you can solve your own riddle....
#1 why fast twist???? to chuck heavier than 100 grn projectiles????
# 2 what do you want rifle to be able to achieve that a std twist cant???
# 3 is the percieved gain worth the actual expence???
# 4 can you achieve ...say 95% of this percieved goal with std twist and a lighter high BC projectile ???? if so,see#3
hope that helps.
The fast twist advantage is "bucking wind" and i went down the fast twist 6mm two or three years ago after a bad day out trying to shoot varmints at decent ranges in a strong wind - with a 223!
so will a say 87grn slippery pill do the job??? what about a 95????
I hear what you mean. In regards to 264 win magnums, their industry standard is 1-9. As such they generally run the old school 140 grainers pretty well for the most part.
BUT the new high BC projectiles are 142 and up and are usually recommended for 1-8 or more and most wont shoot them well.
Very much like the 243. 1-10 twist but you will find individual rifles will shoot 100 trainers well, others not so much. Which I believe is why Nosler do 90 and 95gr BSTs
There are 105s which work very well a bit further out in the 6mms but do usually need a faster twist
Ive got lots of 108 and 103 elds on hand so want something to use them up . . .
Pretty sure I've looked at the same barrel several times and thought about it, ream it to 6mmAi and biff the 105/115 Berger at pace, need a long action though, T3 perfect donor action. That's been my thought process anyhoo.Quote:
Originally Posted by Tentman
Those pills run out of puff way before the long ones do. Same result to 300m though.Quote:
Originally Posted by Micky Duck
Dude....
Do ya rekon I have a mental block with the 6CM. I do have a plan to try before I give up on it. Im gonna put it back in the chassis HMR stock. Im going to load 15-20 rounds and Mac is going to do the same. Well go to the range and take turns at shooting it. That may or maynot tell a story.Quote:
Originally Posted by Pommy
Ive got targets with over 50 groups I've shot with it, and one thing is for sure - either me or the rifle cant shoot consistent small groups!
That's a bummer. What kind of barrel/action is it?
Hardy barrel on a Bergara action. It has been very fustrating, its a beaut smooth action and i put a really good trigger in it. But it shoots mostly groups of 30-40mm, and I know I normally shoot a lot better than that . . .
Not bad enough for repair or replace then. Fine for a point an shoot deer rifle but not for distance varminting.
What pills/powder combinations have been tried to date?Quote:
Originally Posted by Tentman
Sierra 110s, Hornady 103s and 108s, Targex 95s. Powders Stabil 65, 2209, h100v. I have all the targets I've shot with it in a folio (@pommy has some others he did for me) and it just isnt consistent (in my hands with my reloads) But my reloads for 223, 6.8spc, 6.5x55 and others range from solid MOA down to a consistent 0.3 MOA for the 223, so I dont hink its them).
There’s your first problem. Barrel isn’t good enough. The cartridge choice is fine.Quote:
Originally Posted by Tentman
I thought hardy barrels had a good reputation.
I know of several (in this calibre) that shoot ranging from very well to superbly.
Every barrelmaker has some better than others. It’s an art as well as a science. And cost and reputation no guarantee…
I never saw anything to suggest the barrel was a complete lemon. It shot some good groups, some average, but nothing terrible. Did two powder workups with 2209 and 2213sc and got similar results with both and it was consistent across multiple range trips.
Keep it clean. It seemed to shoot best after a couple of foulers. And you can test to confirm but it could be that it goes to crap when it starts getting hot. Not sure how new (or old) the barrel was when you got it and my understanding is Hardy's have had very mixed reviews in the past. The action and stock are sound. I'd still give it a bedding job for peace of mind though.
Definitely wouldn't write of 6mm "crudmoor" just because of the runaround this particular rifle has been giving you. Suggest speaking to trueflite if you are determined to rebarrel though and explain what's been going on with it - they may have some additional insight despite it not being their product.
Your 6CM woes are nothing to do with the cartridge, but you already know that.
I have a cheap and cheerful Howa in 6CM that shot a 0.3 MOA group immediately after I had done a half arsed 10 shot barrel “break in” process.
Since then it’s been an absolute farkin’ laser.
There will be something wrong with that rifle of yours. But you already know that too!
I run a 1:8 trueflite barrel in 243. Started with berger 87gr vld. Easy shooting and setup.
Then stepped up to berger 105gr hunting vld's for larger game and ranges, never could get them to shoot as well as I would expect.
Changed to hornady 108gr eld-m and bingo the world is a happy place again.
Z
There is a dude on this Forum who has quite a reputation. He is from Matakohe. He is very "slippery". His name is 95gr Targex. Get some. Watch the brutal extinction of life either with 2209 or 2213sc. No need for any fast twist barrel. That pill does it so well out of 10 twist. You laugh. The deer dont. They die. Quality from Northland.Quote:
Originally Posted by Tentman
What do the groups look like? Consistent round and regular - or a pattern of multiple small groups in the mix of the bigger 'group'? This for the misbehaving specimen...
Its a hard thing when a rifle doesn't perform - kind of becomes a self fulfilling thing where you expect it to go at a certain level and it always does it to the point that you don't know if its you or the rifle or the weather or it's ammo - then you grab another setup and get cloverleafs. Pain in the arse!