Best NSA slugs for a .22 cal standard lothar walther blank barrel

[Jasperaguila]

Hi guys. Just searching for the best NSA slugs that will shoot best from a standard 22 cal lothar walther barrel blank with the bore diameter being at 5.52mm? 

Im from the other side of the planet and will be bought one time by my sister in law who will come home to our country from Arizona.

Thanks in advance.

 

[Bob_O]

My guess is .218

Weight is another decision. Generally the longer slugs will be better....like 23gr and up. But you'll need some power to push them to a reasonable speed, like 900fps or faster for the best performance.

 

[D-RIG]

It would help a lot to know exactly what airgun you are shooting

with and at what power level , FAC or sub 12 foot pounds . 

 

[Jasperaguila]

my pcp is locally made in my country. It shoots the jsb 18's at 920 fps. 

I read some posts about the 22 cal 23 gns slugs. I was thinking if i get the .217 will that still hold on to my barrel's rifling?

Will the .218 diameter slugs be the best option being a bit larger that the choked bore diameter?

 

[mtnGhost]

.217 might be too small. If you have to make a choice between a little too small and little too big, go big. Thousands of an inch also make a significant difference (ex: a slug .005 too smal " in both my .25 and .30 produce 10-15fps slower and terrible accuracy). 

Get a good set of calipers, and push some pellets through, measure the bite marks across and calculate the average. If you find .218 is too big and .217 is too small, you're probably going to need the barrel lapped or run the slugs through a sizer (my .218 NOE bushing makes the 23gr NSAs .2175).

Good luck

 

[Spray1Mark]

Presumably you are going with a poly form blank?

 

[Jasperaguila]

Im using a standard rifled lothar blank. It is not the poly.

My apologies.. im not always online due to my work.

 

[Doug-T]

I have a MM LW non-hammer forged barrel in my .22 Synrod. I'm assuming it would be very similar to the blank you'll be getting.

I bought an NSA 0.217" sample pack of 19g, 21g, 23g & 27g slugs. With a heavy hammer spring and a bunch of hammer spring tension the 19g were averaging 840fps and shot JSB 18.1g at 920 with the same settings. If I recall correctly the 27g were in the low 700fps range. Accuracy of the 19g were about 1" @ 50 yards. Not great. The heavier ones were worse.

 

[oneshot61]

I have a jkhan noblesse.22 that has a choked Lothar Walther barrel from the factory. Polished barrel, it shoots the 24 and 27grain swagged very accurate. Shooting the 27 @940 and the 24@980. Still a ragged hole @50 yards. It’s going to depend on your particular barrel, but I’ve had a Lothar Walther in a modded Benjamin marauder and it shot 33 grain very accurate. Just my experience, the lw barrels have been accurate for me with a variety of bullets and pellets

 

[Jasperaguila]

Thank.you for all of your responses. Great help!