38g of varget, am I crazy?

[minniehill2]

Should I be seeing higher speeds?
Rem 22-250 Model 700 stainless fluted around 500 rounds down the tube.
50gn Hornady v-max pills
37g Varget = 3560 fps
38g Varget = 3770 fps

I would consider 38g to be a hot load but the cases and primers look the same as a 36g load.... so no pressure signs yet!

Your thoughts please.

 

[agilent_one]

Quickload predicts this load to be at 3767fps at 62.3kpsig.

You are getting very close to the SAAMI max.

 

[minniehill2]

Glad to hear it is still safe! Thanks

 

[stubblejumper]

Glad to hear it is still safe! Thanks

A Quickload calculation does not at all mean that the load is safe in your rifle. There are too many variables for Quickload to be able to predict a chamber pressure to a degree of accuracy that assures that.

 

[ebrand]

Go up slow back off at first pressure signs. I have little doubt that you can go higher if you wish.

 

[minniehill2]

A Quickload calculation does not at all mean that the load is safe in your rifle. There are too many variables for Quickload to be able to predict a chamber pressure to a degree of accuracy that assures that.

I agree but in my first post with the info provided....

I would consider 38g to be a hot load but the cases and primers look the same as a 36g load.... so no pressure signs yet!

The question is why am I not approaching 3850-3900 fps?
I have seen some factory 50gn pills cross the chrono over 4000fps.

 

[stubblejumper]

The question is why am I not approaching 3850-3900 fps?

How did you decide that your load should be developing 3850- to 3900fps?

I have seen some factory 50gn pills cross the chrono over 4000fps.

Possibly with some special blend of factory powders(Superformance), in a tight chamber, on a warm day, but certainly not with Varget. And if you are using a Chrony, light conditions can easily result in variances of over 100fps.

 

[Pooker]

I agree but in my first post with the info provided....


The question is why am I not approaching 3850-3900 fps?
I have seen some factory 50gn pills cross the chrono over 4000fps.

The Hornady Superformance 50gn loads are (according to their website, I haven't chronied any myself) 4k fps at the muzzle. Maybe switch to the Superformance powder from Varget if you want to get over 4k without over loading the cases? I'm not sure.

 

[minniehill2]

From Hornady site Test Barrel (24") Velocity (fps) / Energy (ft-lbs) Muzzle 4000/1776
h ttp://www.hornady.com/store/22-250-Rem-50-gr-V-MAX-Superformance/

And HODGDON site with Superformance starts at 60gn and up.

Is anyoune using Super with 50-55gn pills?
Is anyone pushing factory speeds? Care to share what it took to get there?

 

[Lead Loader]

How long is your factory barrel? Remember fps is lost on shorter barrels

 

[skip1600]

Not that I have any real input on max pressure but is this a compressed load in the cartridge ?

 

[minniehill2]

It is getting very close but not yet.

 

[*MALICE*]

Have you tried the Hornady ammo to see if it is actually pushing that velocity out of our rifle? Just because they re able to get that out of their test rifle does not mean you will get it out of you rifle

 

[minniehill2]

Todays test was 38.5 and 39 Varget...... Still no pressure sign but the 38.5 Very straight! I just think I will stay away from the 39's