Home Forums Hunting & Shooting Hunter's Campfire Firing a .270 with two powders

Weatherby Mark .270 Winchester 24" without brake
Barnes TTSX 110 @3.340”, Federal 215 Magnum, H4831 @
1. 58.0 – 3,069
2. 58.5 – 3,172
3. 59.0 – 3,190
4. 59.5 – 3,217
5. 60.0 - 3,259
6. 60.5 – 3,244
7. 61.0 – 3,270
8. 61.5 – 3,315

With new brake by Hired Gun in North Bend, Oregon
Ramshot Hunter @
1. 64.0 – no reading
2. 64.5 – 3,526
3. 65.0 - 3,541
4. 65.5 - 3,490
5. 66.0 – 3,501
6. 66.5 – 3,518

Any thoughts?

Your loads with Hunter look to be over max for a start and up from there?

Which load and powder was most accurate?

Or does that even factor in with you?

This should really be posted in either the "Hunting Rifle" or "Reloading" forums.

Thoughts? Sure. But .. why don't you ask an actual question instead?

I can tell you that according to Barnes you're 0.8 grains over max with Hunter. I don't have specific data on that bullet with H4831. With a cup-n-core you'd have .5 to go but with a monolithic bullet you may already be past safe max.

That's about all I can give you without some more specific question.

Tom

Not fast enough. More powder.

I got the load from Barnes. He told me their max load was 65.7.

Why?

I was looking at Ramshot's data.

Why not,you're asking people's opinion on hunting rifles. Those two forums are more apporiate for your post.

What question would you suggest? My only thought is I'm going to use Hunter. I was wondering what others would say.

By the way a couple days ago I looked at and enjoyed your 1/4" group you fired with my .224MBC.

The velocities over 65.0 were less, so you can relax with that as a max.

For some reason, the cooking forum comes to mind.

Well, we could start with which powder is more readily available,

or talk accuracy?

But you seem to be preoccupied with speed, so,

Turn it up....

Ah, what is the powder which makes the 165 grain .308 bullet move the fastest?

Ramshots 270/110 data with a 110 Vmax is 59.5.... the discrepancy between ramshot and Barnes is quite stunning!

Rich, I have plotted a lot of velocity vs charge wt graphs with several rifles and many different powder/bullet combinations.

When a velocity curve flattens at the top end, I know I have reached max load regardlees what the book says.

With Hunter, 64 gr is at or above max.

I would drop back to 55 gr with Hunter and chart velocities up through 64 gr. Then you will have a real picture of where your velocity curve flattens. It might be as low as 60 or 62 gr. Where ever that occurs, that is maximum in this rifle/bullet/powder combination.

A 270 as a varmint caliber is interesting.

A 110 Ttsx likely has more shank than most 130s and is likely retain as much or more weight than a 150 partition...just saying!

You should try at least 5 replicates and study up on statistical analysis. One shot at each load tells of very little information other than the obvious, that you need some replicates.

JMHO