300 win

[Tuktu]

hello
help a bit
I'm suspicious that a 7rm was shot thru a 300 rem mag. this thing can't group.

 

[sable tireur]

Welcome to Long Range Hunting!

We also will need a little bit of help from you as well. Pictures of the cartridge cases and targets along with a description of the loads, bullets and the rifle itself.

Did you test the scope first?

Thanks!

 

[Tuktu]

the loads are factory, I'll get details. A couple gunsmiths are suspecting that it may need a good cleaning in the chamber and the bolt head could be a factor.

 

[marc357]

What's a 300 Rem Mag? Wildcat of some sort?

 

[K.E.C.]

Welcome to Long Range Hunting!

We also will need a little bit of help from you as well. Pictures of the cartridge cases and targets along with a description of the loads, bullets and the rifle itself.

Did you test the scope first?

Thanks!

This ^^^^^^^^^^^.
Manufacturer, barrel type, length, reloads or factory, new or old gun...etc....

 

[Tuktu]

300 win mag

 

[AkleyFan]

Please clean the corrosion/verdigris out of that brass if you're going to relaod it, it'll cause dangerous levels of pressure when the bullets chemically lock to the neck. I had a box of Remingtion 175gr that vaporized two primers before I stopped shooting it. I wet/pin tumble all my brass nowadays. If you're getting erratic behaviour with your current loads, pull a bullet or two and check the necks for corrosion. Be safe.

 

[K.E.C.]

That Brass is Nasty.
Even just tumble and put a Nylon brush
In a cordless drill to clean the inside neck.

 

[Tuktu]

we don't reload I was asking about the chaffing near the belt and the oblong or crimp in the neck. tks everyone. I sure enjoy the forum

 

[victor3ranger]

Are they all oblong like that?
Also, seems like something going on just above the belt in the chamber.
Clean the crap out of it and find a bore scope to take a look at what is making the marks on your brass

 

[Tuktu]

Are they all oblong like that?
Also, seems like something going on just above the belt in the chamber.
Clean the crap out of it and find a bore scope to take a look at what is making the marks on your brass

thank you, yes all like that. it is second hand from a guy I suspected used 7rm.
we were using Federal Power Shoc 150 grain. 16 shots. 1 shot Winchester PowerPoint 180 grain and this was very hard to remove. the bolt extractor did remove it. I had to hit it with my hand fairly forcefully.

 

[victor3ranger]

thank you, yes all like that. it is second hand from a guy I suspected used 7rm.
we were using Federal Power Shoc 150 grain. 16 shots. 1 shot Winchester PowerPoint 180 grain and this was very hard to remove. the bolt extractor did remove it. I had to hit it with my hand fairly forcefully.

You really need to get a bore scope in that chamber to see what is going on in there