Thread: Incremental load test anomalies

Sometimes brass can be the culprit, weight sorting can help as often the heavier cases can have a lower internal capacity creating higher pressure. Brass from different lots can have a similar effect as well, neck tension and thickness can have an affect as well.

Could just be your chronograph playing up when clouds go by or if the light is not quite at the right angle, mine is hopeless in the late afternoon.

These are things that can make you start pulling your hair out. Settle on a load and go and see what it does at longer range because that will be the best indicator of what it will do in the field. If you can get out and set up some gongs, say one at 300 and one at 500 and validate your load you'll be away laughing.

Originally Posted by Rated M for Magnum

Sometimes brass can be the culprit, weight sorting can help as often the heavier cases can have a lower internal capacity creating higher pressure. Brass from different lots can have a similar effect as well, neck tension and thickness can have an affect as well.

Could just be your chronograph playing up when clouds go by or if the light is not quite at the right angle, mine is hopeless in the late afternoon.

These are things that can make you start pulling your hair out. Settle on a load and go and see what it does at longer range because that will be the best indicator of what it will do in the field. If you can get out and set up some gongs, say one at 300 and one at 500 and validate your load you'll be away laughing.

I started typing up a post with all this and other variables but didn't want to bamboozle the O.P there are so many many things....every time i think i have my system down to a point I'm happy with my process something else crops up
My latest battle is trimming and getting consistent and even chamfering

Originally Posted by dannyb

I started typing up a post with all this and other variables but didn't want to bamboozle the O.P there are so many many things....every time i think i have my system down to a point I'm happy with my process something else crops up
My latest battle is trimming and getting consistent and even chamfering

Yes in hindsight I could've left the first paragraph out

What I was getting at is there is a list of culprits so long it's not even funny and trying to nail it down can you make you tear your hair out. Especially when there is a chroni involved ay @micky_Duck ?

My method I pressure test with a ladder, load some to shoot groups at the high end of pressure, pick the load with the best grouping (fluke) load up some more and validate at range. Plenty good for shooting animals at 300.

As for trimming and chamfering, I keep having to decide if I'd rather jump off a bridge or trim and chamfer brass.