300 WSM with Unknown Munitions

[B23]

Average of 5 randomly selected, virgin .300 WSM Norma brass was 78.0 grains

How are you measuring to get that 78gr?

 

[BjornF16]

How are you measuring to get that 78gr?

Not sure I really understand your question.

I place fired primers in the brass, place each one on my A&D scale, zero, and fill to top of neck with distilled water using dropper (note: I use a couple of drops of alcohol in dropper bottle to reduce meniscus).

 

[B23]

Not sure I really understand your question.

I place fired primers in the brass, place each one on my A&D scale, zero, and fill to top of neck with distilled water using dropper (note: I use a couple of drops of alcohol in dropper bottle to reduce meniscus).

I was curious if you were filling to the top of the neck with water or top of the neck/shoulder junction or something else. Appreciate your response, thank you.

 

[Schroedernd]

What's a service like this cost? What do you have to provide?

 

[Justin Crossley]

What's a service like this cost? What do you have to provide?

Contact @Unknown Munitions and they can get you pricing for whatever you need.

 

[tbrady77]

are these shots using a sled or some other mechanism to rule out the shooter variable?

 

[Justin Crossley]

are these shots using a sled or some other mechanism to rule out the shooter variable?

I shoot off bipod and sandbags.

 

[Cynoscion]

Unknown reloads for 3 of my rifles and I’ve been super impressed with all 3 loads. 7 SAUM, 300 PRC and 6.5 PRC. During this ammo crisis crap, they were still able to load for me with reasonable lead times and their prices were less then a lot of the ammo sellers on GunBroker. I refuse to pay more for factory ammo then custom loads when Jake’s stuff has always shot so well in my rifles.
I’ll most likely start using Unknown for 6xc and 6br when I run out of the factory stuff I have stockpiled.

 

[tdhanses]

I shoot off bipod and sandbags.

Same here.

 

[tdhanses]

are these shots using a sled or some other mechanism to rule out the shooter variable?

The biggest variable will be the shooter and form, if you use this service you’ll vastly reduce any issues from equipment other then your scope and if it’s quality or mounted correctly.

Personally i’ll never use a sled because its so hard on equipment.

 

[tbrady77]

I do a lot of reloading and have worked up loads for a bunch of rifles. I don't use a sled but I do use a similar device except it has some give to it for the recoil. I don't typically use my bipod/sandbag except for practicing. It's easy (at least for me) to screw up just enough to throw off load development (something as simple as not having enough cheek weld for example)

 

[orionthehunter1]

Do they actually have ammo because every caliber I have looked at is out of stock. Also saw on their Instagram stories that it looks like Norma brass maybe coming to an end in the U.S.

 

[Cynoscion]

Call or send them an email telling them what you want. They’ll get back with you and give you lead times.

 

[tpagel]

This is some great information. Thanks for posting. The tech that goes into the load development is really great to see and the graph with velocities of a given powder very telling. The wave shaped lines are interesting; is it due to barrel harmonics?

 

[Justin Crossley]

This is some great information. Thanks for posting. The tech that goes into the load development is really great to see and the graph with velocities of a given powder very telling. The wave shaped lines are interesting; is it due to barrel harmonics?

Jake and his team do a great job collecting all the needed data to build a very accurate load. I'm not sure I understand your question about the lines on the chart? The lines indicate velocity variation.

Velocity does affect accuracy (obviously) and I believe that is due to barrel harmonics and RPM of the bullet causing it to fly more, or less consistently. Not sure if I'm making any sense there or not....

 

[tpagel]

Jake and his team do a great job collecting all the needed data to build a very accurate load. I'm not sure I understand your question about the lines on the chart? The lines indicate velocity variation.

Velocity does affect accuracy (obviously) and I believe that is due to barrel harmonics and RPM of the bullet causing it to fly more, or less consistently. Not sure if I'm making any sense there or not....

Makes perfect sense. This graph if turned 45* shows waves very cool