Hammer Bullets compressing my powder charge.

N165 might be good for your other load but this isn't your other load. Time to reevaluation your loading process. You need to start over and work up to a safe pressure. It would appear you need a faster powder that takes up less case volume. The easiest to do would be to ask Steve at Hammer bullets for a load. Otherwise check the lists

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First thing I would do is measure where your bullet contacts the lands in your rifle using a Hornady OAL tool and a modified case. Then measure your magazine for max COAL that it will hold. If your magazine allows you to load long enough to hit the lands in your rifle then then start with around .020" jump. If your magazine doesn't allow you to reach the lands then load to max magazine length that still allows proper feeding and function of the loaded round. Then work on powder charge
 
Tech4 said:
Max OL is 2.77 I am seating the bullet at 2.669. The bullet is hitting the powder with .5 of the bullet to go in to cover the top ring. If I removed powder so the bullet doesn't touch I only have 39gr of powder in the case min is 51gr.That would blow up my rifle. On their website they say not to compress the load so how can I possibly do that is my question?
Click to expand...

You need to find the best compromise between CBTO and COAL for your magazine well. Provide a picture and measurements if you can so we can provide sound advice. For instance (pictured is .300 WSM with 215 Berger) ...

.300 WSM 215 Berger 2 of 2.jpg

(.080" off the lands)

.300 WSM 215 Berger 3 of 3.jpg

.300 WSM 215 Berger 1 of 2.jpg

(Mag can accommodate 3.000" COAL)
 
Tech4 said:
..I am using 145 gr shock hammer. I put the bullet in to cover the top ring and the powder is 59gr......
Click to expand...

From the Vihtavuori site that's a little more powder than is listed for either a 140, or 150 grain bullet. Which in itself may or may not be an issue.

What is the source of your load, and have you worked up to this level.
 
Tech4 said:
I am reloading hammer bullets for the first time and when I install the bullet in my brass it goes deep into the powder. I have only loaded with lead bullets to this point and have never put a bullet that deep into the powder. I am loading for my .270 and using N165 it is the best powder for this rifle.
Click to expand...

If you have not loaded this combination of powder and bullet you have no way of knowing if N165 is the best for this bullet.

If max OAL is 2.77 why are you not seating at 2.77?

Have you measured you magazine max length and your ogive length to see when this bullet touches your lands?

The way you have your first post worded scares me that you might be putting yourself in danger of over pressurizing a round.

What 270?
 
Wedgy said:
N165 might be good for your other load but this isn't your other load. Time to reevaluation your loading process. You need to start over and work up to a safe pressure. It would appear you need a faster powder that takes up less case volume. The easiest to do would be to ask Steve at Hammer bullets for a load. Otherwise check the lists

Take Aim at Rifle Reloading Data | Hodgdon Reloading

Find what you need in four easy steps. Select your cartridge type from the drop-down list. Then select your bullet weight, powder manufacturer and powder type. If you're unsure, or just want options, check as many boxes as you'd like. Click "Get Data" to view results.
www.hodgdonreloading.com www.hodgdonreloading.com
View attachment 183116
Click to expand...
Wedgy said:
N165 might be good for your other load but this isn't your other load. Time to reevaluation your loading process. You need to start over and work up to a safe pressure. It would appear you need a faster powder that takes up less case volume. The easiest to do would be to ask Steve at Hammer bullets for a load. Otherwise check the lists

Take Aim at Rifle Reloading Data | Hodgdon Reloading

Find what you need in four easy steps. Select your cartridge type from the drop-down list. Then select your bullet weight, powder manufacturer and powder type. If you're unsure, or just want options, check as many boxes as you'd like. Click "Get Data" to view results.
www.hodgdonreloading.com www.hodgdonreloading.com
View attachment 183116
Click to expand...
I have winchester 270 with 1.10 twist rate I can't use lighter bullets that is why I am using 145gr and the bullet goes .8 of an inch to the top ring The fastest powder in the Hornady book is 52.9gr any powder over 39 gr is compressed. There is no powder that would be 39gr
 
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