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Posted: 9/24/2005 3:43:48 PM EDT
[Last Edit: 9/24/2005 3:54:20 PM EDT by Taffy223]
So far
SMK 52gr ( Flat heel profile) HP ...Wonderfull ...1/2"group @50m
Hornady 68grBTHP ...shite...keyholed...8-10" groups
SMK 69gr BTHP ...medium shite...50m 5" group

and today after reloading some cheap Military type heads 55gr FMJ I had a 1/2" group again.

All tested with R15 ( awaits hassle)

I just get the feeling my rifle is suited more to the lighter bullets.

It is a shorty after all.

I'm happy I have found a good load but I just wanted to try the heavier heads at some longer distances. Out to 300m with these light heads or the surpluss 5.56 my rifle is faultless.

Hmmmm

I'll just have to save up for a remmy 700 for the distant zombies
Link Posted: 9/24/2005 4:39:56 PM EDT

Originally Posted By Taffy223:
So far
SMK 52gr ( Flat heel profile) HP ...Wonderfull ...1/2"group @50m
Hornady 68grBTHP ...shite...keyholed...8-10" groups
SMK 69gr BTHP ...medium shite...50m 5" group

and today after reloading some cheap Military type heads 55gr FMJ I had a 1/2" group again.

All tested with R15 ( awaits hassle)

I just get the feeling my rifle is suited more to the lighter bullets.

It is a shorty after all.

I'm happy I have found a good load but I just wanted to try the heavier heads at some longer distances. Out to 300m with these light heads or the surpluss 5.56 my rifle is faultless.

Hmmmm

I'll just have to save up for a remmy 700 for the distant zombies





Might I suggest a 375 H&H for a heavier load...
Link Posted: 9/24/2005 4:43:44 PM EDT
lets go the whole hog.....




Taffy
Link Posted: 9/24/2005 8:44:48 PM EDT
Taffy:

Have you confirmed the twist rate?

24-25 gr of RL 15 topped with the bullet of your choice is usually a fair choice.

N135/n140/n540 are also good powders, especially with heavier bullets.

H335 is a great 50-55 grain powder.

Something seems odd for you to have decent groups and patterns from the same rifle.

More info please......

SRM

Link Posted: 9/25/2005 2:02:16 AM EDT
Taffy
It sounds like a twist rate thing to me too. If it's 1 in 9 or slower in a short barrel I wouldn't expect great results even with 69 grain bullets let alone anything heavier. If the twist is 1 in 8 or faster you SHOULD be OK. I know some guys with 1 in 9 twist 20" barrels who found the 69grain Sierras borderline for stability. Interestingly some of them said the 77's actually performed better in their barrels, probably because they have a longer bearing surface.
It sounds like you may just have to stick to the lighter bullets.
Link Posted: 9/25/2005 2:17:03 PM EDT
It is a 1:8 and I dont mind sticking to the lighter bullets I just was shocked the first time I had them going in sideways.

Taffy
Link Posted: 9/25/2005 3:48:55 PM EDT

Originally Posted By Taffy223:
It is a 1:8 and I dont mind sticking to the lighter bullets I just was shocked the first time I had them going in sideways.
Taffy



Ahhh, the famous Abi Titmuss quote.
Link Posted: 9/25/2005 4:06:48 PM EDT

Originally Posted By limey1:

Originally Posted By Taffy223:
It is a 1:8 and I dont mind sticking to the lighter bullets I just was shocked the first time I had them going in sideways.
Taffy



Ahhh, the famous Abi Titmuss quote.



I've got seen the video. Nothing going in sideways there.....

52gr SMK were the best rounds I've ever reloaded. 24gr R15 and I could join the dots @ 50m

I'm going to go back to them when i can find a cheap supplier.

Taffy
Link Posted: 9/25/2005 6:18:52 PM EDT
All of my 1/9's have stabilized 69's, some have even stabilized 75/77's. I use 1/7 or 1/8 for 80 grain bullets.

If it were me, I'd grab a cleaning rod and confirm I have a 1/8 and not a 1/12 or 1/14. Those groups indicate a serious problem IMHO.

SRM
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