6x45

[Moose83]

I got the 95 TMK up to 2664fps when pressure testing with my 16” barrel and using H335. Above a max load, but still No pressure signs observed. I don’t have enough left to properly accuracy test and I don’t have any more big game tags for this year.

That's pretty decent velocity from that short of a barrel. Assuming 25 fps per inch of barrel length it should be possible to crack 2700 fps with an 18-20" barrel?

 

[Taudisio]

That's pretty decent velocity from that short of a barrel. Assuming 25 fps per inch of barrel length it should be possible to crack 2700 fps with an 18-20" barrel?

I think I could push it to 2700 from my 16” if I could seat the bullet out farther. My loads were at the max “crunch” I felt comfortable seating. Still no pressure signs. 2.360 COAL, but my mag well needs shaving to make it there without resorting to a single feed rifle.

 

[Moose83]

I think I could push it to 2700 from my 16” if I could seat the bullet out farther. My loads were at the max “crunch” I felt comfortable seating. Still no pressure signs. 2.360 COAL, but my mag well needs shaving to make it there without resorting to a single feed rifle.

Good to know. I recently picked up another .223 tikka, so now I'm only a vice, action wrench and barrel away from a 6x45. I also quickly ran the numbers on a ballistics app and 2700fps with the 95 tmk will keep me above 1800fps out to 550yds where I am. That's much further than I'm comfortable shooting at animals at this point.

 

[Taudisio]

Good to know. I recently picked up another .223 tikka, so now I'm only a vice, action wrench and barrel away from a 6x45. I also quickly ran the numbers on a ballistics app and 2700fps with the 95 tmk will keep me above 1800fps out to 550yds where I am. That's much further than I'm comfortable shooting at animals at this point.

2625 gets me to 500, so that’s where I hope to hit an accuracy node. I think an 18-20” would be ideal for the cartridge pushing the 95’s and not having to push the load/search for a speed powder.

 

[Moose83]

2625 gets me to 500, so that’s where I hope to hit an accuracy node. I think an 18-20” would be ideal for the cartridge pushing the 95’s and not having to push the load/search for a speed powder.

18" is kinda where I'd like to end up in a trim lightweightish bolt gun. I've been following the ULUL thread you guys got going and I'd love to build a 4ish lb straight pull AR... but the way things are going right now in Canada I'm not sure it's a good idea. I'm not even sure I could get a solo 300 up here anyways...

 

[Taudisio]

18" is kinda where I'd like to end up in a trim lightweightish bolt gun. I've been following the ULUL thread you guys got going and I'd love to build a 4ish lb straight pull AR... but the way things are going right now in Canada I'm not sure it's a good idea. I'm not even sure I could get a solo 300 up here anyways...

I know nothing about your laws. Building a traditional bolt action rifle to get to the same weight as the UL ar’s would be an expensive and sacrificial project for sure. My scoped rifle was 3lb 11oz. I don’t think I’ve ever seen a traditional bolt action under 4lbs, even without a scope.

 

[Moose83]

I know nothing about your laws. Building a traditional bolt action rifle to get to the same weight as the UL ar’s would be an expensive and sacrificial project for sure. My scoped rifle was 3lb 11oz. I don’t think I’ve ever seen a traditional bolt action under 4lbs, even without a scope.

Ya... I have no intentions of trying to build a bolt action that light, that's more of a money pit than I'm willing to take on...lol. I'm just a little jealous of the UL AR's you guys get to tinker with.

 

[Harronek]

Good to know. I recently picked up another .223 tikka, so now I'm only a vice, action wrench and barrel away from a 6x45. I also quickly ran the numbers on a ballistics app and 2700fps with the 95 tmk will keep me above 1800fps out to 550yds where I am. That's much further than I'm comfortable shooting at animals at this point.

I have a Tikka 6x45 , the best improvement that I can recommend is to purchase a Waters .223 Magazine that allows an OAL of 2.6 inches.
Then make sure your barrels throat / freebore is cut to allow you to seat the bullets out long .
Here is a photo of mine loaded with a Berger 88gr varmint flat base . As you can imagine the bullet doesn’t protrude down below the neck so you can get maximum powder into the case .
Mine is throwing those Berger 88’s at 2877 fps with zero pressure signs .
The worst thing you can do with a 6x45 if you want to use heavier projectiles is to “ choke “ it with a short OAL magazine.