25 Creedmoor

[milo-2]

Is anyone running one of these with 135gr Berger's? I kind of got caught with my pants down as far as securing powder for it, all I really have on hand is RL16.
Any suggestions?

 

[bsnyder]

I'd start at 38 grains and go up. Rl 16 will be sweet. I run n550 and a 134 at 2970 fps

 

[sable tireur]

Re-16 is nearly perfect for the heavier .25 caliber bullets in the 25 Creedmoor.

You can also consider:

Hodgdon Hybrid 100V
Winchester 760
Ramshot Hunter

There is already a ton of data listed on the internet. A simple search will yield lots of data for the heavier bullets.

 

[milo-2]

Re-16 is nearly perfect for the heavier .25 caliber bullets in the 25 Creedmoor.

You can also consider:

Hodgdon Hybrid 100V
Winchester 760
Ramshot Hunter

There is already a ton of data listed on the internet. A simple search will yield lots of data for the heavier bullets.

Your google-fu must be stronger than mine, lol. I looked a bit and my results were dim.
I guess I have a supply of N550 too.
Thanks

 

[windypants]

42.3 H4350 or 43.5 N555 @2885 fps for me.

 

[lancetkenyon]

I have two 25CMs.

42.4 H4350 w. 135s @ 2986 from a 26" Brux 1:7.5". Lapua 6CM SRP necked up brass and Fed GM205M
42.6 H4350 w. 133s @ 2975 from a 26" Bartlein 400MODBB 1:7". Alpha 25CM SRP and CCI BR4.

 

[Longtine88]

I have two 25CMs.

42.4 H4350 w. 135s @ 2986 from a 26" Brux 1:7.5". Lapua 6CM SRP necked up brass and Fed GM205M
42.6 H4350 w. 133s @ 2975 from a 26" Bartlein 400MODBB 1:7". Alpha 25CM SRP and CCI BR4.

Question Lance….if I cut one to 22" barrel length in a 4 groove Brux 7"T can I expect to be around 2850??

 

[bsnyder]

Question Lance….if I cut one to 22" barrel length in a 4 groove Brux 7"T can I expect to be around 2850??

Not lance but you should be close. I know you run good brass I'm at 2970 and 24 so 2850 shouldn't be to hard on brass in a 22 in. I run a 7.5 twist brux

 

[VinceMule]

I have two 25CMs.

42.4 H4350 w. 135s @ 2986 from a 26" Brux 1:7.5". Lapua 6CM SRP necked up brass and Fed GM205M
42.6 H4350 w. 133s @ 2975 from a 26" Bartlein 400MODBB 1:7". Alpha 25CM SRP and CCI BR4.

That is very, very impressive! Most with the least comes to mind!

 

[milo-2]

I have two 25CMs.

42.4 H4350 w. 135s @ 2986 from a 26" Brux 1:7.5". Lapua 6CM SRP necked up brass and Fed GM205M

What's your jump with the 135 Berger?

 

[milo-2]

I'd start at 38 grains and go up. Rl 16 will be sweet. I run n550 and a 134 at 2970 fps

I started at 38.5gr RL16, was under 2600fps. Quit at 40.7gr, 2760 fps, 26" Benchmark. I thought it would be around -2900fps.
Alpha 25 creed brass. 205M. Not losing any pressure to case growth, it's minimal, both length and dia.

 

[Longtine88]

Oh wow that doesn't come close to the power factor.

 

[wasskeet]

I think you either have an awfully slow barrel or something else going on not to have at least another 100fps on tap with RL16.

I ran N555 up to 2889 with 135 hybrid. ES/SD were in single digits. This is in a 26" barrel. Never could get decent groups, but found some nicks in crown. A friend has got it recrowned and hopefully I will be back in business in a couple weeks.

 

[milo-2]

Oh wow that doesn't come close to the power factor.

My assumption as well. I think I had over 48 lbs of this lot#. In 6x47 Lapua, and everything else, Dashers, it is quite dynamic. It's been over 14 yrs since I had this brand of barrel, so unsure of the speedup gains.
I doubt I'll take it over 41,5grs