Pressure estimate ?

[Huntchic]

Well its no different than making a A1 in 5.56 with a delta ring and end cap really. Just a different caliber. The ones ive done folks wanted the removable...

[Huntchic]

Sorry Rickt, I guess i was late to the party. good luck on the build....

[Huntchic]

16" with JP adjustable block...

[Huntchic]

I built one with a 16" barrel and used the JP adjustable that A5 number two suggested. I've also made one in 12" barrel without an adjustable...

[Huntchic]

That's interesting information LR1955. Like many things in testing there is different equipment used and variances in results. I agree powder lots and...

[Huntchic]

As A5 said without actual pressure testing equipment the "real" pressure cant be known for sure. I was just seeking a Guestimate based off my...

[Huntchic]

Well i agree completely Gray fox. I shot 3 sets of 5 shots at 31.0 and at 31.1. According to the magna speed the Average of all 3 sets average was right...

[Huntchic]

Thank you guys as always. Gray fox as long as im below the 5200 pressure im happy. like having a little buffer.
LRRPF52, Im was using twice fired...

[Huntchic]

Thanks A5, I did exactly what you said worked up at .2 till I got to 31.1.
I've not seen any signs on the Brass or primers to indicate a high pressure...

[Huntchic]

Thought I would create a new post Because got into this in a different post not about test loading 90 grain TNT.
So my question is, Anyone have...

[Huntchic]

A5 Blaster, I did a ton of testing with The ABLR last year before deer season in my 12” and 18”. I settled on TAC and CFE powder. I get excellent...

[Huntchic]

Shot yesterday for accuracy at 30.9, 31.0 and 31.1 in 12” barrel with the 90 gr. TNT. Shot 2 five shot groups at each increment.
It seems that...

[Huntchic]

Thanks Rickt300,
I do make sure of my scent and wind direction, It always my first consideration to where I sit. At some point I may get a e-call...

[Huntchic]

Thanks GrayFox, Your always helpful with data and calculations. I feel like 30.9 to 31.1 is where my best accuracy is. I don't know what exactly my pressure...

[Huntchic]

Thanks Guys, Sorry I got off track on my original question of why a 2 full grain difference in data.
After doing a ton of research on the newer...

[Huntchic]

So after reviewing my data and thinking more about your thoughts A5 about edging up powder charge carefully I decided to try a couple at 31.1 and 31.2....

[Huntchic]

Welcome Mig1Nc. Nice having another North Carolinian....

[Huntchic]

great work Cavity Back,
Nice seeing bullets being made for short barrel velocities....

[Huntchic]

A5, I appreciate that advice. I believe there is room to grow also.
I did that exact same method when I was working with the 125 partition and...

[Huntchic]

Not head over heels but for out to 150 yards it will do ok. Depends on if next trip when I can shoot 5 or 7 for a group and then I’ll hopefully be happy...