THAC Copper Bullets

[One on top of two]

Hopefully get these test loads shot Thursday been sat loaded for a while! Think being self employed it would be easy busy time in the equestrian calendar!

Went for 2.955 col as its max length in the metal MDT mag... see how we go! 6.5 prc, N565, 122 grainers

Im using N555

 

[Ronin]

They will stand a significant jump

So you do not have to worry about mag length - so long as powder capacity is not compromised

 

[monarman]

Northallerton shooting and countrywear have THAC in stock... give them a ring and ask for Dave, he'll tell you what's what.

 

[hendrix's rifle]

Hopefully get these test loads shot Thursday been sat loaded for a while! Think being self employed it would be easy busy time in the equestrian calendar!

Went for 2.955 col as its max length in the metal MDT mag... see how we go! 6.5 prc, N565, 122 grainers

Is n565 not a bit slow for the 120? Id have thought 560/165 would probably see more velocity. Stick the results up when you have tested them

 

[farrieral]

Is n565 not a bit slow for the 120? Id have thought 560/165 would probably see more velocity. Stick the results up when you have tested them

In my testing with the PRC I've found the complete opposite

N565 produces more MV for me

 

[One on top of two]

58grn /N555 will give me 3200fps with 100%burn
COL 2960

 

[hendrix's rifle]

In my testing with the PRC I've found the complete opposite

N565 produces more MV for me

Usually with the heaviet bullets I've found better velocity, for anything under 130g I've Usually found 560 to be a bit quicker

 

[farrieral]

Usually with the heaviet bullets I've found better velocity, for anything under 130g I've Usually found 560 to be a bit quicker

Will see what they achieve over the garmin!

 

[Dave_45]

Now added 125gr 270 bullets to their inventory….

6mm coming also

 

[One on top of two]

Will see what they achieve over the garmin!

Have you had chance to test them yet ?

 

[One on top of two]

After playing around with some RS 70 ive got a very tasty 122 grn THAC doing 3300 fps , ridiculously accurate too .

 

[farrieral]

Have you had chance to test them yet ?

Yes, best group was .4" which was early on in the charge weight test and produced 2910 fps with an SD of 3.1 over 4 shots, 57 grains of N565.

Groups opened up somewhat and in between there and final charge of 58.5 which saw 3033, .9" group, SD of 9.4, 4 shots.

Could definitely push more, no signs of pressure, did a quick charge weight test with N165 to see if that would push them a wee bit faster but wasn't alot in it... just a single shot of each charge weight over the chrono to see what that powder would do.

I have found over testing quite a few lead and non lead loadings, hand loaded and factory ammo that the 24" barrel on my rifle, a Tikka Ace game, brand new last July/Aug time seems to be particularly slow.

Definitely would like more speed, and barrel is likely due a good scrub out at this point.

Mulling over some different powders currently, limited supply in my neck of the woods!

 

[One on top of two]

Yes, best group was .4" which was early on in the charge weight test and produced 2910 fps with an SD of 3.1 over 4 shots, 57 grains of N565.

Groups opened up somewhat and in between there and final charge of 58.5 which saw 3033, .9" group, SD of 9.4, 4 shots.

Could definitely push more, no signs of pressure, did a quick charge weight test with N165 to see if that would push them a wee bit faster but wasn't alot in it... just a single shot of each charge weight over the chrono to see what that powder would do.

I have found over testing quite a few lead and non lead loadings, hand loaded and factory ammo that the 24" barrel on my rifle, a Tikka Ace game, brand new last July/Aug time seems to be particularly slow.

Definitely would like more speed, and barrel is likely due a good scrub out at this point.

Mulling over some different powders currently, limited supply in my neck of the woods!

If your not getting any pressure signs i would be tempted to push harder , your deffo down on FPS , go it a go

 

[farrieral]

If your not getting any pressure signs i would be tempted to push harder , your deffo down on FPS , go it a go

Have some more stout loadings ready to shoot

 

[Dave_45]

After playing around with some RS 70 ive got a very tasty 122 grn THAC doing 3300 fps , ridiculously accurate too .

I’m going to try some more charges in the 6.5 284

So far though the accuracy is excellent and terminal effect is what you want

 

[One on top of two]

,

 

[One on top of two]

I’m going to try some more charges in the 6.5 284

So far though the accuracy is excellent and terminal effect is what you want

What are you getting at the min fps wise ?

 

[Dave_45]

What are you getting at the min fps wise ?

3080 maybe

 

[One on top of two]

@farrieral

Hello buddy , ive put your reply here as i cant send pictures via DM


Here is my final load data , i actually got just over 3300 fps . No pressure but load was starting to compress due loading COAL 2.955 because of magazine length , the bullet shank sat quite deep .

I believe i started off at 53 grn

I ACCEPT NO RESPONSIBILITY FOR THIS LOAD IN YOUR RIFLE .

 

[farrieral]

@farrieral

Hello buddy , ive put your reply here as i cant send pictures via DM


Here is my final load data , i actually got just over 3300 fps . No pressure but load was starting to compress due loading COAL 2.955 because of magazine length , the bullet shank sat quite deep .

I believe i started off at 53 grn

I ACCEPT NO RESPONSIBILITY FOR THIS LOAD IN YOUR RIFLE .



View attachment 471570

Ideal, Diolch