17 Mach IV with 'Lilgun powder

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12 December 2005, 09:54

ColoradoMatt

17 Mach IV with 'Lilgun powder

Has anyone here used Hodgdon's 'Lilgun in the 17 Mach IV? If so, how good is it?

Thanks,
Matt

Matt
FISH!!

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12 December 2005, 18:04

Mulerider

LilGun sure seems fast for the 17M4, considering how well RL7, Benchmark, H322, and H335 work.
There are several 4198 loads listed at various sites, and I have read of 4227 loads being used under light (20gr) bullets. 4227 is near the burn rate of LilGun, but only 14.0-14.5 gr were considered max.
Since 18.5-19.5gr are used with most of the "preferred" powders, to use a low density load of LilGun is treading in the unknown...
I have found the .17's to be very sensitive to pressure spikes when approaching max loads, which might be aggravated with fast powders.

What weight bullets did you hope to use?